Seeking September holidays?
They’re essential for keeping your social media followers, friends, and even students smiling!
Labor Day is just the beginning. Spark joy or draw attention to a cause with 490 special days and observances:
- September 2023 fun holidays and national days.
- Month-long, multi-day, and daily September holidays.
- More than 40 health awareness observances.
- Religious holidays, too.
- All the September holidays to engage your audience!
490 hashtags too! Gear up for good times…
How to Use September Hashtag Holidays
Wondering how seasonal holidays help your social media marketing?
You have to keep your followers engaged to keep your posts surfacing in their news feeds! Weird holidays help grab their attention and comments.
After you set your strategy for the month with these September marketing ideas, use the special days listed below to inspire fun and engaging posts.
You can find pre-made holiday graphics like the ones shown in this article, and schedule them in a snap with PromoRepublic.
Disclosure: If you purchase a plan I will earn a referral fee.
Copy and paste the holiday hashtag into your post to increase your reach. I’ve included one for each observance listed below!
Baffled by #hashtags? Learn more about how to use hashtags on social media.
Month of September 2023 Holidays and Observances
More than 90 month-long holidays in September! Pick one relevant to your business or cause and plan a campaign for your best social media platforms.
September birthstone is Sapphire. The color of the month is deep blue (the most popular favorite color around the world!).
September flower of the month is aster or morning glory. Some people also recognize forget-me-not as a September birth flower. All three flowers are blue to purple tones.
All American Breakfast Month #AllAmericanBreakfast
Animal Pain Awareness Month #AnimalPainAwarenessMonth
Atrial Fibrillation Awareness Month #AtrialFibrillationAwarenessMonth
Attendance Awareness Month #AttendanceAwarenessMonth
Baby Safety Month #BabySafetyMonth
Backpack Safety America Month #Backpack Safety
Be Kind to Editors & Writers Month #BeKindToEditorsAndWritersMonths
Better Breakfast Month #BetterBreakfastMonth
Blood Cancer Awareness Month #BloodCancerAwarenessMonth
Bourbon Heritage Month #BourbonHeritageMonth
Child Passenger Safety Month #ChildPassengerSafetyMonth
Childhood Cancer Awareness Month #ChildhoodCancerAwarenessMonth
Cholesterol Education Month #CholesterolEducationMonth
Classical Music Month #ClassicalMusicMonth
Craniofacial Acceptance Month #CraniofacialAcceptanceMonth
Fall Hat Month #FallHatMonth
Fetal Alcohol Spectrum Disorders Awareness Month #FASDAwarenessMonth
Gynecologic Cancer Awareness Month #GynecologicCancerAwarenessMonth
Happy Cat Month #HappyCatMonth
Healthy Aging Month #HealthyAgingMonth
Histiocytosis Awareness Month #HistiocytosisAwarenessMonth
Hunger Action Month #HungerActionMonth
Hydrocephalus Awareness Month #HydrocephalusAwarenessMonth
Idiopathic Intracranial Hypertension Awareness Month #IIHAwarenessMonth
Intergeneration Month #IntergenerationMonth
International People Skills Month #InternationalPeopleSkillsMonth
International Speak Out Month #InternationalSpeakOutMonth
International Square Dancing Month #InternationalSquareDancingMonth
International Strategic Thinking Month #InternationalStrategicThinkingMonth
International Update Your Resumé Month #InternationalUpdateYourResumeMonth
International Women’s Friendship Month #InternationalWomensFriendshipMonth
ITP Awareness Month #ITPAwarenessMonth
Library Card Sign-up Month #LibraryCardSignUpMonth
National Americana Month #NationalAmericanaMonth
National Blueberry Popsicle Month #NationalBlueberryPopsicleMonth
National Campus Safety Awareness Month #CampusSafetyAwarenessMonth
National Chiari Awareness Month #ChiariAwarenessMonth
National Chicken Month #NationalChickenMonth
National Child Awareness Month #ChildAwarenessMonth
National Childhood Obesity Awareness Month #ChildhoodObesityAwarenessMonth
National College Savings Month #CollegeSavingsMonth
National Coupon Month #NationalCouponMonth
National Courtesy Month #NationalCourtesyMonth
National DNA, Genomics & Stem Cell Education Month
National Family Meals Month #FamilyMealsMonth
National Food Safety Education Month #FoodSafetyEducationMonth
National Head Lice Prevention Month #HeadLicePreventionMonth
National Hispanic Heritage Month (9/15–10/15) #NationalHispanicHeritageMonth
National Home Furnishings Month #NationalHomeFurnishingsMonth
National Honey Month #NationalHoneyMonth
National Infant Mortality Awareness Month #InfantMortalityAwarenessMonth
National Italian Cheese Month #NationalItalianCheeseMonth
National Little League Month #LittleLeagueMonth
National Mold Awareness Month #MoldAwarenessMonth
National Mortgage Professional Month #NationalMortgageProfessionalMonth
National Mushroom Month #NationalMushroomMonth
National Ovarian Cancer Awareness Month #OvarianCancerAwarenessMonth
National Passport Awareness Month #PassportAwarenessMonth
National Peripheral Artery Disease (PAD) Awareness Month #PADAwarenessMonth
National Piano Month #NationalPianoMonth
National Potato Month #NationalPotatoMonth
National Preparedness Month #NationalPreparednessMonth
National Prostate Health Month #NationalProstateHealthMonth
National Recovery Month #NationalRecoveryMonth
National Rice Month #NationalRiceMonth
National Save a Tiger Month #NationalSaveATigerMonth
National School Success Month #NationalSchoolSuccessMonth
National Service Dog Month #NationalServiceDogMonth
National Sewing Month #NationalSewingMonth
National Shake Month #NationalShakeMonth
National Sickle Cell Awareness Month #SickleCellAwarenessMonth
National Skin Care Awareness Month #SkinCareAwarenessMonth
National Spinal Cord Injury Awareness Month #SpinalCordInjuryAwarenessMonth
National Suicide Prevention Month #NationalSuicidePreventionMonth
National Wilderness Month #NationalWildernessMonth
National Yoga Month #NationalYogaMonth
Newborn Screening Awareness Month #NewbornScreeningAwarenessMonth
Organic Harvest Month #OrganicHarvestMonth
Pain Awareness Month #PainAwarenessMonth
Polycystic Ovarian Syndrome (PCOS) Awareness Month #PCOSAwarenessMonth
Pulmonary Fibrosis (PF) Awareness Month #PulmonaryFibrosisAwarenessMonth
Read a New Book Month #ReadANewBookMonth
Save the Koala Month #SaveTheKoalaMonth
Save Your Photos Month #SaveYourPhotosMonth
Self Improvement Month #SelfImprovementMonth
Self-Care Awareness Month #SelfCareAwarenessMonth
Sexual Health Month #SexualHealthMonth
Shameless Promotion Month #ShamelessPromotionMonth
Subliminal Communications Month #SubliminalCommunicationsMonth
Thyroid Cancer Awareness Month #ThyroidCancerAwarenessMonth
Whole Grains Month #WholeGrainsMonth
World Alzheimer’s Month #WorldAlzheimersMonth
World Animal Remembrance Month #WorldAnimalRemembranceMonth
World Beach Month #WorldBeachMonth
September 2023 Multi-day Holidays and Observances
Multi-day holidays usually change dates from year to year, and they’re the hardest to pin down. I’ve done my best to ensure these dates are correct for 2023. Before investing time and/or money in a promotion, it’s a good idea to double-check.
Sept. 1–7 National Childhood Injury Prevention Week #NationalChildhoodInjuryPreventionWeek
Sept. 3–9 International Housekeepers Week #InternationalHousekeepersWeek
Sept. 3–9 National Waffle Week #NationalWaffleWeek
Sept. 4–8 National Payroll Week #NationalPayrollWeek
Sept. 9–17 European Heritage Days #EuropeanHeritageDays
Sept. 10–16 Healthcare Environmental Services Week #HealthcareEnvironmentalServicesWeek
Sept. 10–16 National Assisted Living Week #NationalAssistedLivingWeek
Sept. 10–16 National Beauty and Barber Week #NationalBeautyAndBarberWeek
Sept. 10–16 National Folic Acid Awareness Week #NationalFolicAcidAwarenessWeek
Sept. 10–16 National Nephrology Nurses Week #NephrologyNursesWeek
Sept. 10–16 National Suicide Prevention Week #NationalSuicidePreventionWeek
Sept. 10–16 National Truck Driver Appreciation Week #NTDAW
Sept. 17–23 Constitution Week #ConstitutionWeek
No dates yet National Ballroom Dance Week #NationalBallroomDanceWeek
Sept. 19–25 Balance Awareness Week #BalanceAwarenessWeek
Date not set Build A Better Image Week #BuildABetterImageWeek
Sept. 17–23 Child Passenger Safety Awareness Week #ChildPassengerSafetyAwarenessWeek
Sept. 17–23 International Clean Hands Week #InternationalCleanHandsWeek
Date not set National Employ Older Workers Week #NEOWW
Sept. 17–23 National Security Officer Appreciation Week #NationalSecurityOfficerAppreciationWeek
Sept. 17–23 National Singles Week #NationalSinglesWeek
Sept. 17–23 National Surgical Technologists Week NationalSurgicalTechnologistsWeek
Sept. 17–23 Sea Otter Awareness Week #SeaOtterAwarenessWeek
Sept. 18–24 World Mitochondrial Disease Week #WorldMitochondrialDiseaseWeek
Sept. 18–24 International Week of the Deaf #IWDP
Sept. 18–24 National Rehabilitation Awareness Week #NationalRehabilitationAwarenessWeek
Sept. 18–24 Pollution Prevention Week #PollutionPreventionWeek
Sept. 18–24 World Reflexology Week #WorldReflexologyWeek
Sept. 19–23 National Farm Safety and Health Week #NationalFarmSafetyAndHealthWeek
Sept. 19–25 Milan Fashion Week #MilanFashionWeek
Sept. 23–24 National Alpaca Farm Days #NationalAlpacaFarmDays
Sept. 24–30 Deaf Dog Awareness Week #DeafDogAwarenessWeek
Sept. 25–29 Global ITP Awareness Week #Global4ITP
Oct. 1–7 Banned Books Week #BannedBooksWeek (moved to October for 2023)
September 1 Holidays and Observances 2023
September is crazy full of holidays! You’ll find a bunch to choose from every single day.
Daily holidays marked * change dates from year to year. Note that some of the graphics included in this article may have been made for a year other than 2023. Be sure to use the dates in the listings for accuracy 🙂
American Chess Day #AmericanChessDay
Building and Code Staff Appreciation Day #BuildingAndCodeStaffAppreciationDay
Chicken Boy’s Day #ChickenBoysDay
Emma M. Nutt Day #EmmaMNuttDay
Ginger Cat Appreciation Day #GingerCatAppreciationDay
National Acne Positivity Day #NationalAcnePositivityDay
National Burnt Ends Day #NationalBurntEndsDay
National Cherry Popover Day #NationalCherryPopoverDay
National No Rhyme or Reason Day #NoRhymeOrReasonDay
Pink Cadillac Day #PinkCadillacDay
World Letter Writing Day #LetterWritingDay
The following are celebrated the first Friday in September:
Bring Your Manners To Work Day* #BringYourMannersToWorkDay
National Chianti Day* #NationalChiantiDay
National College Colors Day* #CollegeColorsDay
National Food Bank Day* #FoodBankDay
National Lazy Mom’s Day* #LazyMomsDay
Wear Teal Day* (ovarian cancer awareness) #WearTealDay
September 2 Holidays and Observances 2023
Bison-ten Yell Day #BisonTenYellDay
Calendar Adjustment Day #CalendarAdjustmentDay
National Blueberry Popsicle Day #BlueberryPopsicleDay
Pierce Your Ears Day #PierceYourEarsDay
Spalding Baseball Day #SpaldingBaseballDay
Victory Over Japan Day #VJDay
Here are lots of freedom quotes to use to celebrate the day.
World Coconut Day #CoconutDay
These are celebrated the Saturday before Labor Day:
Franchise Appreciation Day* #FranchiseAppreciationDay
International Bacon Day* #InternationalBaconDay
The following are celebrated the first Saturday in September:
International Vulture Awareness Day* #InternationalVultureAwarenessDay
National Hummingbird Day* #NationalHummingbirdDay
National Tailgating Day #TailgatingDay
World Beard Day #BeardDay
September 3 Holidays and Observances 2023
National Skyscraper Day #NationalSkyscraperDay
National Welsh Rarebit Day #NationalWelshRarebitDay
U.S. Bowling League Day #USBowlingLeagueDay
Observed the first Sunday in September:
Pet Rock Day* #PetRockDay
September 4 Holidays and Observances 2023
Eat an Extra Dessert Day #EatAnExtraDessertDay
National Leadership Day #NationalLeadershipDay
National Macadamia Nut Day #MacadamiaNutDay
National Newspaper Carrier Day #NewspaperCarrierDay
National Spice Blend Day #NationalSpiceBlendDay
National Wildlife Day #NationalWildlifeDay
Observed the first Monday in September:
Labor Day* #LaborDay
Mouthguard Day* #MouthguardDay
September 5 Holidays and Observances 2023
International Day of Charity #DayOfCharity
National Be Late For Something Day #BeLateForSomethingDay
National Shrink Day #NationalShrinkDay
National Cheese Pizza Day #NationalCheesePizzaDay
World Samosa Day #WorldSamosaDay
Observed the day after Labor Day:
Another Look Unlimited Day* #AnotherLookUnlimitedDay
Telephone Tuesday* #TelephoneTuesday
September 6 Holidays and Observances 2023
Barbie Doll Day #BarbieDollDay
Fight Procrastination Day #FightProcrastinationDay
Don’t miss these procrastination quotes to encourage productivity!
Great Egg Toss Day #GreatEggTossDay
National Coffee Ice Cream Day #CoffeeIceCreamDay
National Read A Book Day #ReadABookDay
Stillbirth Remembrance Day #StillbirthRemembranceDay
Celebrated the first Wednesday in September:
Global Talent Acquisition Day* #GlobalTalentAcquisitionDay
September 7 Holidays and Observances 2023
Google Commemoration Day #GoogleCommemorationDay
National Acorn Squash Day #AcornSquashDay
National Beer Lover’s Day #NationalBeerLoversDay
National Feel the Love Day #NationalFeelTheLoveDay
National Grandma Moses Day #GrandmaMosesDay
You can also find a full list of artist birthdays and a collection of art quotes.
National Grateful Patient Day #GratefulPatientDay
National Neither Snow Nor Rain Day #NeitherSnowNorRainDay
National Salami Day #NationalSalamiDay
Superhuman Day #SuperhumanDay
September 8 Holidays and Observances 2023
International Literacy Day #LiteracyDay
National Actors Day #NationalActorsDay
National Ampersand Day #AmpersandDay
National Date Nut Bread Day #NationalDateNutBreadDay
National Pediatric Hematology/Oncology Nurses Day #PediatricHematologyOncologyNursesDay
National Pledge of Allegiance Day #NationalPledgeOfAllegianceDay
Pardon Day #PardonDay
Star Trek Day #StarTrekDay
Virgin Mary Day #VirginMaryDay
World Physical Therapy Day #PhysicalTherapyDay
National 401(k) Day* #401kDay (Friday after Labor Day)
Stand Up To Cancer Day* #StandUpToCancerDay (second Friday in September)
September 9 Holidays and Observances 2023
Care Bears Share Your Care Day #ShareYourCare
Fetal Alcohol Spectrum Disorders Awareness Day #FASDAwarenessDay
International Buy a Priest a Beer Day #BuyAPriestABeerDay
International Sudoku Day #InternationalSudokuDay
National Steak Au Poivre Day #NationalSteakAuPoivreDay
National Teddy Bear Day #NationalTeddyBearDay
National Wiener Schnitzel Day #wienerschnitzelday
Tester’s Day #TestersDay
Wonderful Weirdos Day #WonderfulWeirdosDay
Observed the second Saturday in September:
Aunt’s Day* #AuntsDay
Farmers’ Consumer Awareness Day* #FarmersConsumerAwarenessDay
German Language Day* #GermanLanguageDay
International Drive Your Studebaker Day* #InternationalDriveYourStudebakerDay
National Iguana Awareness Day* #IguanaAwarenessDay
World First Aid Day* #WorldFirstAidDay
September 10 Holidays and Observances 2023
Blame It on the Large Hadron Collider Day #BlameItOnTheLargeHadronColliderDay
International Makeup Day #InternationalMakeupDay
National Swap Ideas Day #NationalSwapIdeasDay
National TV Dinner Day #NationalTVDinnerDay
Sewing Machine Day #SewingMachineDay
World Suicide Prevention Day #SuicidePreventionDay
National Grandparents Day* #NationalGrandparentsDay (Sunday after Labor Day)
Observed the second Sunday in September:
Day of the Homeland (Germany)* #DayOfTheHomelandGermany
National Hug Your Hound Day* #HugYourHoundDay
National Pet Memorial Day* #PetMemorialDay
Racial Justice Sunday* #RacialJusticeSunday
Sustainable House Day* #SustainableHouseDay
September 11 Holidays and Observances 2023
There are several observances in the U.S. today in honor of #911Day.
“I Want to Start My Own Business” Day #IWantToStartMyOwnBusinessDay
Libraries Remember Day #LibrariesRememberDay
National Day of Service and Remembrance #NationalDayOfServiceAndRemembrance
National Hot Cross Bun Day #NationalHotCrossBunsDay
National Make Your Bed Day #NationalMakeYourBedDay
Patriot Day (US) #PatriotDay
Remember Freedom Day #RememberFreedomDay
Women’s Baseball Day #WomensBaseballDay
Celebrated the second Monday in September:
I’m on Top of It Day* #ImOnTopOfItDay
National Boss/Employee Exchange Day* #BossEmployeeExchangeDay
September 12 Holidays and Observances 2023
International Day for South-South Cooperation #DayForSouthSouthCooperation
Just One Human Family Day JustOneHumanFamilyDay
National Chocolate Milkshake Day #ChocolateMilkshakeDay
National Day of Encouragement #NationalDayofEncouragement
National Police Woman Day #PoliceWomanDay
National Report Medicare Fraud Day #ReportMedicareFraudDay
National Video Games Day #NationalVideoGamesDay
National Ants On A Log Day* #AntsOnALogDay (second Tuesday)
September 13 Holidays and Observances 2023
Bald Is Beautiful Day #BaldIsBeautifulDay
Defy Superstition Day #DefySuperstitionDay
Fortune Cookie Day #FortuneCookieDay
International Chocolate Day #ChocolateDay
National Celiac Disease Awareness Day #CeliacAwarenessDay
National Kids Take Over The Kitchen Day #KidsTakeOverTheKitchenDay
National Peanut Day #NationalPeanutDay
National Programmers Day* #ProgrammersDay (Observed the 256th day of the year, so it changes on Leap Years).
Positive Thinking Day #PositiveThinkingDay
Try these positive quotes to encourage someone today!
Snack a Pickle Day #SnackAPickleDay
Supernatural Day #SupernaturalDay
Roald Dahl Day #RoaldDahlDay
Uncle Sam Day #UncleSamDay
September 14 Holidays and Observances 2023
Gobstopper Day #GobstopperDay
National Coloring Day #ColoringDay
National Cream-Filled Donut Day #CreamFilledDonutDay
National Eat a Hoagie Day #NationalHoagieDay
National Live Creative Day #LiveCreativeDay
Don’t miss these creativity quotes!
National Parents Day Off #NationalParentsDayOff
Support Latino Business Day #SupportLatinoBusinessDay
The Exaltation of the Holy Cross #ExaltationOfTheHolyCross
Have you seen my free cross Facebook cover photos?
R U OK Day* (Australia) #RUOKDayAustralia
September 15 Holidays and Observances 2023
Greenpeace Day #GreenpeaceDay
International Day of Democracy #DayOfDemocracy
International Dot Day #DotDay
Make a Hat Day #MakeAHatDay
National Cheese Toast Day #CheeseToastDay
National Crème de Menthe Day #CremeDeMentheDay
National Double Cheeseburger Day #DoubleCheeseburgerDay
National Felt Hat Day #NationalFeltHatDay
National Linguine Day #NationalLinguineDay
National Online Learning Day #OnlineLearningDay
National Tackle Kids Cancer Day #TackleKidsCancerDay
National Thank You Day #NationalThankYouDay
Check out these gratitude quotes.
World Afro Day #WorldAfroDay
Celebrated the third Friday in September:
International Grenache Day* #GrenacheDay
National Concussion Awareness Day* #ConcussionAwarenessDay
National POW/MIA Recognition Day* #PowMiaRecognitionDay
National Tradesmen Day* #TradesmenDay
September 16 Holidays and Observances 2023
Anne Bradstreet Day #AnneBradstreetDay
International Day for the Preservation of the Ozone Layer #InternationalDayForThePreservationOfTheOzoneLayer
It’s a good day to share a love for nature quote.
Mayflower Day #MayflowerDay
Mexican Independence Day #MexicanIndependenceDay
National Cinnamon Raisin Bread Day #CinnamonRaisinBreadDay
National Collect Rocks Day #NationalCollectRocksDay
National Guacamole Day #GuacamoleDay
National Play-Doh Day #NationalPlayDohDay (now World, see below)
National Stepfamily Day #NationalStepFamilyDay
National Tattoo Story Day #TattooStoryDay
National Working Parents Day #WorkingParentsDay
Stay Away From Seattle Day #StayAwayFromSeattleDay
Teenager Workout Day #TeenagerWorkoutDay
World Play-Doh Day #WorldPlayDohDay
All these are observed the third Saturday in September.
There are three cleanup observances today. Each is sponsored by a different organization. A busy day!
Batman Day* #BatmanDay
Big Whopper Liar Day* #BigWhopperLiarDay
Boys and Girls Club Day for Kids* #BoysAndGirlsClubDayForKids
International Coastal Cleanup Day* #CoastalCleanupDay
International Eat An Apple Day* #EatAnAppleDay
International Red Panda Day* #RedPandaDay
Locate An Old Friend Day* #LocateAnOldFriendDay
National Cleanup Day* #NationalCleanupDay
National Dance Day* #DanceDay
National Gymnastics Day* #GymnasticsDay
Puppy Mill Awareness Day* #PuppyMillAwarenessDay
Responsible Dog Ownership Day* #ResponsibleDogOwnershipDay
Software Freedom Day* #SoftwareFreedomDay
Thank a Police Officer Day* #ThankAPoliceOfficerDay
World Cleanup Day* #WorldCleanupDay
September 17 Holidays and Observances 2023
Constitution Day and Citizenship Day #ConstitutionDay #CitizenshipDay
National Apple Dumpling Day #AppleDumplingDay
National Monte Cristo Day #MonteCristoDay
National Professional House Cleaners Day #ProfessionalHouseCleanersDay
National Table Shuffleboard Day #TableShuffleboardDay
Time’s Up Day #TimesUpDay
World Patient Safety Day #PatientSafetyDay
These are observed the third Sunday in September.
National Back to Church Sunday* #NationalBackToChurchSunday
National Neighborhood Day* #NationalNeighborhoodDay
National Women’s Friendship Day* #NationalWomensFriendshipDay
Wife Appreciation Day* #WifeAppreciationDay
September 18 Holidays and Observances 2023
Chiropractic Founders Day #ChiropracticFoundersDay
Hug A Greeting Card Writer Day #HugAGreetingCardWriterDay
International Equal Pay Day #InternationalEqualPayDay
International Read an Ebook Day #InternationalReadAnEbookDay
National Cheeseburger Day #NationalCheeseburgerDay
National First Love Day #FirstLoveDay
National HIV/AIDS and Aging Awareness Day #HivAidsAndAgingAwarenessDay
National Respect Day #RespectDay
Rice Krispies Treats Day #RiceKrispiesTreatsDay
World Bamboo Day #WorldBambooDay
World Water Monitoring Day #WaterMonitoringDay
September 19 Holidays and Observances 2023
International Talk Like A Pirate Day #TalkLikeAPirateDay
Meow Like a Pirate Day #MeowLikeAPirateDay
National Butterscotch Pudding Day #ButterscotchPuddingDay
National Woman Road Warrior Day #WomanRoadWarriorDay
These are observed the third Tuesday in September:
Get Ready Day* (confirmed) #GetReadyDay
IT Professionals Day* #ItProfessionalsDay
Take a Loved One to the Doctor Day* #TakeALovedOneToTheDoctorDay
September 20 Holidays and Observances 2023
National Care for Kids Day #NationalCareForKidsDay
National Fried Rice Day #NationalFriedRiceDay
National Gibberish Day #NationalGibberishDay
National LGBTQ Veteran’s Day #lgbtqVets920
National Pepperoni Pizza Day #PepperoniPizzaDay
National Punch Day #NationalPunchDay
National String Cheese Day #NationalStringCheeseDay
National School Backpack Awareness Day* #SchoolBackpackAwarenessDay (third Wednesday)
September 21 Holidays and Observances 2023
Escapology Day #EscapologyDay
International Day of Peace #DayOfPeace
Miniature Golf Day #MiniatureGolfDay
National Chai Day #NationalChaiDay
National Pecan Cookie Day #NationalPecanCookieDay
Pause the World Day #PauseTheWorldDay
World’s Alzheimer’s Day #AlzheimersDay
World Gratitude Day #WorldGratitudeDay
Free Queso Day* #FreeQuesoDay (3rd Thursday)
September 22 Holidays and Observances 2023
Business Women’s Day #BusinessWomensDay
Chainmail Day #ChainmailDay
Dear Diary Day #DearDiaryDay
Elephant Appreciation Day #ElephantAppreciationDay
Hobbit Day #HobbitDay
International Day of Radiant Peace #DayOfRadiantPeace
National Bakery Day #NationalBakeryDay #NBD
National Centenarian’s Day #CentenariansDay
National Girls’ Night In Day #GirlsNightInDay
National Ice Cream Cone Day #IceCreamConeDay
National Legwear Day #NationalLegwearDay
National Online Recovery Day #NationalOnlineRecoveryDay
National White Chocolate Day #WhiteChocolateDay
World Carfree Day #WorldCarfreeDay
World Rhino Day #WorldRhinoDay
Observed the fourth Friday in September:
Love Note Day* #LoveNoteDay
National BRAVE Day* #BraveDay
Native American Day* #NativeAmericanDay
September 23 Holidays and Observances 2023
A super busy day in 2023!
Celebrate Bisexuality Day #CelebrateBisexualityDay
International Day of Sign Languages #InternationalDayOfSignLanguages
National Checkers Day #NationalCheckersDay
National Dogs in Politics Day #DogsInPoliticsDay
National Great American Pot Pie Day #GreatAmericanPotPieDay
National Snack Stick Day #NationalSnackStickDay
National Teal Talk Day #TealTalkDay
Restless Legs Awareness Day #RestlessLegsAwarenessDay
Observed on the autumnal equinox:
First Day of Fall* #FirstDayOfFall
National Falls Prevention Awareness Day* #FallsPreventionAwarenessDay
Proposal Day* #ProposalDay (also observed on spring equinox)
Observed the fourth Saturday in September:
Fish Amnesty Day* #FishAmnestyDay
International Rabbit Day* #RabbitDay
Kiwanis Kids’ Day* #KiwanisKidsDay
Museum Day* #MuseumDay
National Hunting and Fishing Day* #HuntingAndFishingDay
National Public Lands Day* #PublicLandsDay
National Seat Check Saturday* #SeatCheckSaturday
R.E.A.D. in America Day* #READInAmericaDay
National Singles Day* #SinglesDay (observed the Saturday of National Singles Week)
September 24 Holidays and Observances 2023
Bluebird of Happiness Day #BluebirdOfHappinessDay
National Cherries Jubilee Day #CherriesJubileeDay
National Horchata Day #NationalHorchataDay
National Punctuation Day #NationalPunctuationDay
Schwenkfelder Thanksgiving #SchwenkfelderThanksgiving
Innergize Day* #InnergizeDay (day after autumnal equinox)
Daughter’s Day* #DaughtersDay (fourth Sunday)
Observed the last Sunday in September:
Gold Star Mother’s Day* #GoldStarMothersDay
World Day of The Deaf* #WorldDeafDay
World Rivers Day* #WorldRiversDay
September 25 Holidays and Observances 2023
Binge Day #BingeDay
International Ataxia Awareness Day #AtaxiaAwarenessDay
Math Storytelling Day #MathStoryTellingDay
National Comic Book Day #NationalComicBookDay
National Cooking Day #CookingDay
National Food Service Employees Day #NationalFoodServiceEmployeesDay
National Lobster Day #NationalLobsterDay
National One-Hit Wonder Day #OneHitWonderDay
National Psychotherapy Day #PsychotherapyDay
National Quesadilla Day #NationalQuesadillaDay
National Research Administrator Day #ResearchAdministratorDay
National Tune-Up Day #NationalTuneUpDay
Open the Magic Day #OpenTheMagicDay
World Dream Day #WorldDreamDay
World Pharmacist Day #WorldPharmacistDay
Family Day* #FamilyDay (fourth Monday)
Yom Kippur* AKA Day of Atonement #YomKippur (Observed the 10th of Tishri in the Hebrew calendar)
September 26 Holidays and Observances 2023
European Day of Languages #EuropeanDayOfLanguages
Human Resource Professional Day #HumanResourceProfessionalDay
Mesothelioma Awareness Day #MesotheliomaAwarenessDay
National Better Breakfast Day #BetterBreakfastDay
National Compliance Officer Day #ComplianceOfficerDay
National Dumpling Day #NationalDumplingDay
National Johnny Appleseed Day #JohnnyAppleseedDay
National Pancake Day #NationalPancakeDay
National Shamu the Whale Day #ShamuTheWhaleDay
National Situational Awareness Day #NationalSituationalAwarenessDay
The Last of Us Day #TheLastOfUsDay
National Voter Registration Day* #VoterRegistrationDay (fourth Tuesday)
September 27 Holidays and Observances 2023
Ancestor Appreciation Day #AncestorAppreciationDay
Morning Show Hosts Day #MorningShowHostsDay
National Chocolate Milk Day #ChocolateMilkDay
National Corned Beef Hash Day #CornedBeefHashDay
National Crush a Can Day #NationalCrushACanDay
National Day of Forgiveness #NationalDayOfForgiveness
National Gay Men’s HIV/AIDS Awareness Day #GayMensHivAidsAwarenessDay
World Tourism Day #TourismDay
See You at the Pole* #SeeYouAtThePole (4th Wednesday)
Observed the last Wednesday in September:
National Women’s Health & Fitness Day* #WomensHealthFitnessDay
World School Milk Day* #WorldSchoolMilkDay
September 28 Holidays and Observances 2023
British Home Child Day #BritishHomeChildDay
Fish Tank Floorshow Night #FishTankFloorshowNight
International Right To Know Day #RightToKnowDay
National Drink Beer Day #DrinkBeerDay
National Good Neighbor Day #GoodNeighborDay
National Strawberry Cream Pie Day #StrawberryCreamPieDay
Read a Child a Book You Like Day #ReadAChildABookYouLikeDay
World Rabies Day #WorldRabiesDay
Remember Me Thursday* #RememberMeThursday (fourth Thursday)
To help raise awareness of pet adoption, try these dog best friend quotes.
World Maritime Day* #MaritimeDay (last Thursday)
September 29 Holidays and Observances 2023
Broadway Musicals Day #BroadwayMusicalsDay
Confucius Day #ConfuciusDay
Goose Day #GooseDay
International Day of Awareness of Food Loss and Waste #FLWDay
Michaelmas #Michaelmas
National Biscotti Day #BiscottiDay
National Coffee Day #NationalCoffeeDay
National Mocha Day #NationalMochaDay
VFW Day #VFWDay
World Heart Day #WorldHeartDay
Ask a Stupid Question Day* #AskAStupidQuestionDay (last weekday)
Observed the last Friday in September:
Hug A Vegetarian (or Vegan) Day* #HugAVegetarianDay #HugAVeganDay
Save The Koala Day* #SaveTheKoalaDay
Sport Purple for Platelets Day* #SportPurpleForPlateletsDay
September 30 Holidays and Observances 2023
Extra Virgin Olive Oil Day #ExtraVirginOliveOilDay
International Blasphemy Rights Day #BlasphemyRightsDay
International Podcast Day #PodcastDay
International Translation Day #TranslationDay
National Chewing Gum Day #ChewingGumDay
National Hot Mulled Cider Day #HotMulledCiderDay
National Love People Day #NationalLovePeopleDay
National Mud Pack Day #MudPackDay
National PrepareAthon! Day #NationalPrepareAthonDay
Orange Shirt Day #OrangeShirtDay
Thunderbirds Day #ThunderbirdsDay
Observed the last Saturday in September:
Family Health and Fitness Day USA* #FamilyHealthAndFitnessDayUsa
International Lace Day* #LaceDay
National Ghost Hunting Day* #GhostHuntingDay
Save Your Photos Day* #SaveYourPhotosDay last
Conclusion
I hope you’ve found a number of September holidays your audience will love!
Be sure to pin the image below to Pinterest so you can come back for more.
For pre-made holiday graphics like the ones I’ve shown above, try PromoRepublic.
Disclosure: If you purchase a plan I will earn a referral fee.
Don’t miss my mega roundup of social media holidays for the entire year!
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