Thailand School Holidays 2027: OBEC Term Dates & Breaks (2570)

Calendar year 2027 (Buddhist Era 2570) spans the second semester of the 2569 academic year and the first semester of the 2570 academic year under the standard OBEC (Office of the Basic Education Commission) framework. Thai public primary and secondary schools operate on a two-semester system, featuring a major summer break (March to mid-May, covering Songkran) and an October mid-year break.

Provisional — pending official confirmation

In Thailand, the school year starts in mid-May and concludes in early March of the following calendar year. Calendar year 2027 covers the conclusion of academic year 2569 and the main portion of academic year 2570. Private, international, and bilingual schools set their own academic calendars.

Thailand School Holidays 2027: OBEC Term Dates & Breaks (2570)

DateHolidayType
Jan 16SaturdayNational Teachers' Day (School Closure)Annual school holiday in honour of teachers across Thailand. While not a general public holiday, schools nationwide are closed.School closure
Mar 6 – May 16Saturday – SundaySummer Break / Major School Vacation (Academic Year 2569)The longest annual school holiday in Thailand (around 10 weeks), spanning the hot season and the traditional Songkran New Year festival (13–15 April).Summer break
May 17 – Oct 8Monday – FridaySemester 1 (Academic Year 2570)First semester of the new academic year officially begins on the third Monday of May and runs through early October.Term
Oct 9 – 31Saturday – SundayMid-Year Break / October Vacation (Academic Year 2570)Inter-semester break of approximately 3 weeks between Semester 1 and Semester 2.Mid-year break
Nov 1 – Dec 31Monday – FridaySemester 2 (Academic Year 2570, Part 1)Semester 2 starts on 1 November and continues through early March 2028.Term

Last updated: 2026-09-16 · Provisional — pending official confirmation

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Coordinating School Vacations with Thailand Public Holidays 2027

In Thailand, schools are legally closed on all gazetted national public holidays. When a national holiday falls during an academic term (such as Visakha Bucha in May, Queen Mother’s Birthday in August, or King Chulalongkorn Day in October), schools observe the day off as well as any official government in-lieu days.

The Songkran Festival (13–15 April) naturally falls within the major summer vacation (March to May), giving families an extended period for travel without requiring special term-time absence.

See the full Thailand 2027 public-holiday calendar
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Official sources & data

Provisional — pending official confirmationLast updated: 2026-09-16

Frequently asked questions

When does the major summer break (ปิดเทอมใหญ่) start in Thailand in 2027?

Under the standard OBEC schedule, the major summer vacation begins after annual final examinations around 6 March 2027 and continues until 16 May 2027, lasting roughly 10 weeks.

When does the 2570 (2027) academic year begin in Thailand?

Semester 1 of the 2570 academic year opens on Monday 17 May 2027 for all public primary and secondary schools under OBEC.

Are schools closed on National Teachers’ Day (วันครู)?

Yes. Every year on 16 January, National Teachers’ Day is celebrated across Thailand. While government offices and businesses remain open, schools nationwide are officially closed.

Do international and private schools in Thailand follow the same calendar?

No. International schools in Thailand generally follow British, American, or IB curricula with three terms (starting in August/September and having June–August summer breaks). Private Thai schools follow OBEC guidelines closely but may adjust examination and break dates by 1–2 weeks.

When is the October mid-year break (ปิดเทอมเล็ก) in 2027?

The October vacation runs from 9 October to 31 October 2027 (approximately three weeks). Semester 2 begins on Monday 1 November 2027.

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