Free tool
Social Media Holidays in May 2026
May runs from Star Wars Day on May 4 through Mother's Day on May 10 to Memorial Day on May 25. Here is the full month with dates, hashtags and notes on the two that move every year.
Last updated: 2026-08-03
May is the month where tone matters most, because its three biggest dates ask for three completely different voices inside four weeks. Star Wars Day on May 4 is a pun the whole internet is in on and the single easiest post of the quarter. Mother's Day in the US on May 10 is a large commercial moment and, for a meaningful slice of any audience, a genuinely painful day. Memorial Day in the US on May 25 is a remembrance, and the brands that treat it as the unofficial start of summer with a sale attached are the ones that end up apologizing.
Both of the big ones float. Mother's Day is the second Sunday of May and Memorial Day is the last Monday, so neither repeats on the same date, and a campaign copied forward from last year will be off by days. Underneath them May is comfortable: Cinco de Mayo on May 5, National Nurses Day on May 6, International Day of Families on May 15 and World Bee Day on May 20 are all straightforward posts, and National Hamburger Day on May 28 gives food accounts a soft landing into the long weekend.
The table below lists all 13 May observances in this calendar, 3 of them flagged as top picks, with the hashtag next to each one so you are not guessing at the spelling. 2 of them move from year to year and are resolved here for 2026, each with a note in the table saying which rule it follows. Nothing on this page is gated: the email at the bottom is the year at a glance in one message, for people who would rather plan twelve months in one sitting than come back to twelve pages.
Every social media holiday in May 2026
All 13 May observances in date order, with the hashtag and the category for each one. The 3 highlighted rows are the top picks, the dates with the widest recognition, and any date that moves from year to year carries the rule it follows under its name.
| Date | Observance | Hashtag | Category |
|---|---|---|---|
| May 1 | May Day and International Workers' Day | #MayDay | CommunitySeasonal |
| May 4 | Star Wars DayTop pick | #MayThe4thBeWithYou | Fun |
| May 5 | Cinco de Mayo | #CincoDeMayo | CommunityFood |
| May 6 | National Nurses Day | #NationalNursesDay | Community |
| May 8 | World Ovarian Cancer Day | #WorldOvarianCancerDay | Awareness |
| May 10 | Mother's Day in the USTop pickSecond Sunday of May, May 10 in 2026 | #MothersDay | CommunitySeasonal |
| May 12 | International Nurses Day | #InternationalNursesDay | Community |
| May 15 | International Day of Families | #DayOfFamilies | Community |
| May 18 | International Museum Day | #InternationalMuseumDay | AwarenessFun |
| May 20 | World Bee Day | #WorldBeeDay | Awareness |
| May 25 | Memorial Day in the USTop pickLast Monday of May, May 25 in 2026 | #MemorialDay | CommunitySeasonal |
| May 28 | National Hamburger Day | #NationalHamburgerDay | Food |
| May 31 | World No Tobacco Day | #WorldNoTobaccoDay | Awareness |
Dates are compiled from public observance registries and industry roundups and are resolved for 2026, last reviewed 2026-08-03. Floating observances such as Thanksgiving, Easter and Mother's Day move every year, and national holidays differ by country, so check anything time critical against a local calendar before you schedule it.
How to use the May list
A calendar like this is a menu, not a schedule. Three passes is usually all it takes to turn the table above into a month you can actually publish.
Cut it down first
Read the whole month once and keep only the dates a customer would connect to what you sell. Two or three is the right number. The top picks are the widest-recognition dates, so they are the natural shortlist, but a smaller day that fits your niche exactly beats a big one that does not.
Work backwards from the date
Anything that needs photography, a landing page or stock on a shelf needs two to three weeks of lead time, so a date in the last week of May is really a briefing in the first. Put the deadline in your calendar, not the observance.
Fill the gaps, do not lead with them
Your customer stories, product news and the things you know better than anyone else come first. Observances are for the days between them, which is exactly where most feeds go quiet.
Dates are compiled from public observance registries and industry roundups and are resolved for 2026, last reviewed 2026-08-03. Floating observances such as Thanksgiving, Easter and Mother's Day move every year, and national holidays differ by country, so check anything time critical against a local calendar before you schedule it.
The whole of 2026 in one email
The tables on this site are free and you never need an address to read them. This is the shortcut: the 39 top picks of the year, three or four a month with their hashtags, in a single message you can plan a year from without opening twelve pages.
Posting around May without forcing it
- Give people a way out of your Mother's Day campaign. One line at the top of the email offering to skip it is now standard practice for a reason: it saves subscribers you would otherwise lose in the first week of May.
- Memorial Day on May 25 is a remembrance, not a sale. If your business genuinely runs a long weekend promotion, keep the promotion and the remembrance in separate posts, and never combine the two in one graphic.
- Star Wars Day on May 4 works for any brand with a sense of humor, but the pun is what is free, not the property. Do not use the logos, the characters or the artwork unless you hold a license.
- Remember that Mother's Day is not a global date. The UK celebrates Mothering Sunday in March, and dozens of countries use other dates entirely, so a worldwide audience needs a targeted send rather than one blast on May 10.
- Nurses and healthcare accounts should plan the first week of May properly. National Nurses Day on May 6 and International Nurses Day on May 12 sit close enough together to run as one campaign rather than two disconnected posts.
Frequently asked questions
Are these dates the same every year?
Some are, some are not. Fixed dates such as Star Wars Day on May 4 are the same every year and can be planned indefinitely ahead. 2 May entries float: Mother's Day in the US on May 10 and Memorial Day in the US on May 25 this year. Every floating entry is resolved for 2026 and carries a note in the table explaining the rule behind it, which tells you exactly which rows to re-check when the year rolls over.
Do I have to post for every one of these?
Definitely not, and trying is the fastest way to make a feed look automated. 13 observances in May is a menu, not a quota. Pick the two or three a customer would actually connect to what you sell, and let the rest go by without comment. The table flags 3 top picks for May, Star Wars Day on May 4, Mother's Day in the US on May 10 and Memorial Day in the US on May 25, as the ones with the widest recognition, and even those only earn a post if you have something real to say on the day.
What is in the emailed calendar?
One message with the top picks for all twelve months, 39 dates in total, so you can block out a year in one sitting instead of visiting twelve pages. It is built from the same dataset this page is rendered from, so nothing in it contradicts what you are reading. To be clear about what the form is and is not: the full May table above is free, complete and needs no email at all.
Where do these dates come from?
Public observance calendars, national holiday listings and the industry roundups that track the newer hashtag days, cross-checked against each other and resolved for 2026. Which observances make the list, and which 3 in May are the ones most people recognize, is our curated estimate rather than measured data. Anything tied to one country moves or does not exist elsewhere, so check anything time critical against a local calendar before you schedule it.
Is anything stored when I use this page?
Only your email address, and only if you ask for the year calendar. The May table is rendered on our server and ships inside the page, so reading it involves no account, no tracking of what you looked at and no input from you at all. If you do request the calendar we receive your address and which page you asked from, so we can send it and know which page produced it. Marketing email is a separate checkbox that starts unticked.
Are Mother's Day and Memorial Day on the same dates every year?
Neither one is. Mother's Day in the US is the second Sunday of May, which is May 10 in 2026, and Memorial Day is the last Monday of May, which is May 25. Both carry a floating note in the table for that reason. Star Wars Day on May 4 and Cinco de Mayo on May 5 are fixed and never move.
Related free tools
Keep the rest of the checklist close: each tool works on its own, no account needed.
Schedule the whole month before it starts
Postify supports nine platforms in one workflow: plan, schedule, and publish without juggling five different tools.