School Calendar
Academic Calendar 2025/2026
2026
August
17: Start of Term 1 / Orientation
20-21: Overnight Camp at ASIS
September
1: Start ECA / CCA (TBC)
17: Thai Teachers Day – Wan Kru Day
25: Mid-Autumn Festival
October
12-16: Mid-Term Break
23: King Chulalongkorn Memorial Day
30:Halloween
November
2-6: Camp Week for Primary (TEN)
9-13: Anti – Bully Week
12: World Kindness Day
24: Loy Krathong
30: Assessment Week (CA1)
December
1-3: Assessment Week (CA 1)
4: Marking Day (No Lesson)
9: End of Term 1 / Christmas
10: PTC / Report Card Day
11-31: School Break
2027
January
1-4: School Break
5: Start of term 2
8: Children’s Day
19: Start of CCA (TBC)
28: International Day
February
1-3: Chinese Language Week
4-5: Chinese New Year Break
22: Public Holiday
March
8-12: Math Week
22-25: Assessment Week (CA2)
26: Marking Day (No Lesson)
April
1: End of Term 2 Songkran Day
2: PTC / Report Card Day
3-18 :School Break
19: Start of Term 3
29: International Dance Day
30: World Book Week
May
4: Coronation Day
5: Funfair Day
20: Visakha Bucha Day
June
3: Her Majesty the Queen Birthday
4: World Environment Day
11: Music Fest ASIS
14-17:Assessment Week (FA)
18: Marking Day
24: End of term 3 / Graduation
25: PCT / Report Card Day
July
1-31: Summer Break
August
16: Term 1 2027/2028
* Please note that the calendar is subject to change