May Holidays 2027: A Family Calendar of Holidays, Observances and Fun Days (With Kid Activities)

The biggest May holidays in 2027 are Cinco de Mayo (May 5), Mother’s Day (Sunday, May 9), Armed Forces Day (May 15) and Memorial Day (Monday, May 31), the month’s only federal holiday, with Eid al-Adha expected on May 16 or 17.

Looking for May holidays to plan around? May 2027 is packed: a federal holiday weekend at the end of the month, Mother’s Day, a full week of thanking teachers, one of the biggest holidays in Islam, and three month-long observances.

We checked every 2027 date against official sources in November 2026 and calculated each weekday. Below: a day by day calendar, one easy activity per holiday, the real history of Cinco de Mayo and a printable summary.

May Holidays 2027 at a Glance

Dates checked in November 2026 against OPM, the U.S. Flag Code, the NEA, the Library of Congress, Mental Health America and the UAE Astronomy Centre’s projections. Weekdays were calculated, not copied. Eid al-Adha depends on the moon, so confirm locally.

May 2027 starts on a Saturday and ends on Memorial Day, Monday, May 31, so it has five full weekends for picnics and park days.

May 2027 Holiday Calendar, Day by Day

The “Type” column shows whether a day is a federal holiday (government offices close), a religious or cultural observance, a heritage or awareness month, or a day set by an organization.

Most quirky “national days” you see online are unofficial, so we only list days we could trace to a law, a federal agency or a named organizer.

Memorial Day 2027: May’s Only Federal Holiday

Only one federal holiday falls in May. The U.S. Office of Personnel Management (OPM) lists Memorial Day on Monday, May 31, 2027. Federal law sets it on the last Monday in May, and in 2027 that is the very last day of the month.

• What it honors: Memorial Day is for remembering the men and women who died while serving in the U.S. military, which makes it different from Veterans Day in November.
• The flag: the U.S. Flag Code (4 U.S.C. 6) lists Memorial Day as a day to display the flag at half-staff until noon. Kids can help raise it to the top at midday.
• What closes: federal offices close; schools and workplaces decide locally, so check your district calendar.
• Long weekend planning: Memorial Day weekend runs Saturday, May 29 to Monday, May 31. If you are driving or flying to see family, our guide to baby sleep while traveling helps you protect naps on the road.

Memorial Day vs. Armed Forces Day. Armed Forces Day, which the Flag Code places on the third Saturday in May (May 15, 2027), thanks people serving right now. Memorial Day remembers those who died in service. For a 5 year old: “Armed Forces Day says thank you. Memorial Day says we remember.”

Religious and Cultural Holidays in May 2027

Here is what May’s faith and cultural days mean, so you can explain them to curious kids or wish a neighbor well.

• Eid al-Adha, expected Sunday, May 16 or Monday, May 17: Eid al-Adha is celebrated on the 10th day of Dhul Hijjah, the last month of the Islamic (Hijri) calendar, and it follows the Day of Arafah. It is a time to remember the sacrifice of the Prophet Ibrahim, and families share meat with people in need. Khaleej Times reports that the UAE’s Astronomy Centre projects Eid on May 16 or 17, 2027. The official date depends on moon sighting, so U.S. communities may celebrate on different days.
• Cinco de Mayo, Wednesday, May 5: Cinco de Mayo marks the Mexican army’s victory over French forces at the Battle of Puebla on May 5, 1862. It is not Mexican Independence Day, which is September 16. There is more on the real history below.
• Next month: the Islamic New Year and Shavuot are in our June holidays calendar.

Keep explanations simple for young children: “Our neighbors are celebrating Eid today, and they share food with people who need it.”

May Holidays for Kids: One Simple Activity for Each

These ideas need little more than paper and crayons. Pick one or two a week rather than trying to do them all.

Toddlers do best with one short activity, not a full schedule. On sunny days, swap a craft for one of our outdoor games for kids.

Mother’s Day 2027: Sunday, May 9

Mother’s Day falls on Sunday, May 9, 2027, the second Sunday in May. The U.S. Flag Code lists Mother’s Day as one of the days to fly the flag. It is not a federal holiday.

Little kids love to give something they made themselves:

• Breakfast in bed: toast and fruit carried in by a proud preschooler.
• A handmade card: fold a sheet of paper in half and let kids draw. If you need help with the words, our guide on what to write in a Mother’s Day card has ideas sorted by who is writing.
• A coupon book: small squares of paper that say “one free hug” or “I will set the table.” Pre-writers can draw theirs.
• A quote for the fridge: pick one favorite line from our happy Mother’s Day quotes and let kids decorate around it.
• Include the whole circle: grandmothers, stepmothers, aunts and foster moms can all get a card. A child who has lost a mother can choose who to celebrate.

For moms of babies, the best gift might simply be a long nap.

Cinco de Mayo: The Real History of the Battle of Puebla

Here is the short, accurate version you can share with kids:

• What happened: on May 5, 1862, Mexican forces led by Ignacio Zaragoza defeated the invading French army of Napoleon III at the Battle of Puebla and forced it to retreat.
• What happened next: the win did not end the war. According to a Library of Congress legal specialist, more French troops arrived, later captured Mexico City and Puebla, and Maximilian of Habsburg became Emperor of Mexico.
• What it is not: Cinco de Mayo is not Mexican Independence Day. Mexico celebrates its independence on September 16.
• Where it is celebrated: the same Library of Congress writer notes that Cinco de Mayo is probably celebrated more in the United States than in Mexico, and that May 5 is not on the list of mandatory days off in Mexico’s federal labor law.

For kids, a great way in is geography: find Mexico on a map, then find the city of Puebla. Keep it respectful: focus on history, music and family time rather than costumes.

Teacher Appreciation Week and May’s Heritage Months

• Teacher Appreciation Week, May 3 to 7: the National Education Association says Teacher Appreciation Week is held each year during the first full week of May, with National Teacher Day on the Tuesday, which is May 4, 2027. NEA traces National Teacher Day to 1953, when Eleanor Roosevelt asked Congress to set aside a day to honor educators. See our Teacher Appreciation Week ideas.
• Asian/Pacific American Heritage Month: according to the Law Library of Congress, a 1978 law (Public Law 95-419) led to the first Asian/Pacific American Heritage Week in May 1979, and a 1992 law (Public Law 102-450) permanently designated May as Asian/Pacific American Heritage Month. You may also see it called Asian American, Native Hawaiian and Pacific Islander Heritage Month.
• Jewish American Heritage Month: the Law Library of Congress notes that Jewish Heritage Week was proclaimed starting in 1980, and that after a 2006 congressional resolution, President George W. Bush proclaimed May as Jewish American Heritage Month.
• Mental Health Awareness Month: Mental Health America founded Mental Health Awareness Month in 1949. Try a morning check-in where everyone points to a happy, sad, mad or worried face.

Classroom ideas for May. Try a thank-you wall during Teacher Appreciation Week, a map corner for Cinco de Mayo, a heritage month read-aloud each Friday and end-of-year field day games. Invite families to share their traditions if they would like to, and never single out a child to explain their culture.

Keeping Sleep on Track During May Celebrations

Spring concerts, end-of-year parties and the Memorial Day weekend all push bedtime later, and it can still be bright outside at your child’s bedtime. A few habits help:

• Plan celebrations for daytime or early evening with babies and toddlers, and keep the usual bedtime when you can.
• Keep the bedtime routine the same, even on holiday nights. Our toddler bedtime routine guide shows how to keep it short and predictable.
• Dim the lights in the hour before bed and close the curtains if evenings are still bright. Our guide to what color light is best for sleep explains why lighting matters.
• On Memorial Day weekend, protect at least one good nap a day and get back to your normal schedule on Monday night, before school or daycare on Tuesday.
• Wherever your baby naps during a busy holiday weekend, the safe sleep basics stay the same: alone, on their back, on a firm, flat surface with nothing else in the sleep space.

May 2027 at a Glance (Printable Summary)

Print this page or copy this summary onto the fridge:

• All month: Asian/Pacific American Heritage Month, Jewish American Heritage Month and Mental Health Awareness Month.
• Week 1 (May 1 to 9): May Day (Sat., May 1); Teacher Appreciation Week (Mon., May 3 to Fri., May 7); National Teacher Day (Tue., May 4); Cinco de Mayo (Wed., May 5); Mother’s Day (Sun., May 9).
• Week 2 (May 10 to 16): Armed Forces Day (Sat., May 15); Day of Arafah expected May 15 or 16; Eid al-Adha expected Sun., May 16 or Mon., May 17.
• Week 4 (May 24 to 31): Memorial Day weekend (Sat., May 29 to Mon., May 31); Memorial Day, the federal holiday (Mon., May 31).
• Before and after: see our April holidays calendar and the June guide linked above.

Related Betteroo Guides

• June Holidays 2027
• April Holidays 2027
• March Holidays 2027
• Mother’s Day Poems
• Teacher Appreciation Quotes
• Backyard Games for Kids

The Bottom Line

May 2027 gives families a lot to celebrate: Teacher Appreciation Week in the first week, Cinco de Mayo on a Wednesday, Mother’s Day on May 9, Armed Forces Day on May 15, Eid al-Adha expected on May 16 or 17, and Memorial Day, the month’s only federal holiday, on Monday, May 31. Pick two or three days that matter most to your family, keep activities simple, and protect bedtime.

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