Monthly register
Thailand public holidays in December 2026
Thailand has 4 public holidays in December 2026.
December 2026 in Thailand runs 31 calendar days, the depth of Northern-hemisphere winter and Southern-hemisphere summer. Thailand observes 4 public holidays in December 2026: King Bhumibol's Birthday, King Bhumibol's Birthday Observed, Constitution Day, New Year's Eve. 3 of those fall on weekdays and reduce the working-day count accordingly. That leaves 20 working days for Thailand businesses, payroll cycles, and project schedules in December 2026. December centres on the Christmas long weekend in Christian countries and a cluster of solstice and winter-celebration days globally. For broader context, see the full 2026 calendar for Thailand or the global view of holidays observed in December 2026 across all 190 countries we cover.
20
Working days
8
Weekend days
3
Public holidays
31
Days in December
- Dec5
King Bhumibol's Birthday
Saturday, December 5, 2026
- Dec7
King Bhumibol's Birthday Observed
Monday, December 7, 2026
- Dec10
Constitution Day
Thursday, December 10, 2026
- Dec31
New Year's Eve
Thursday, December 31, 2026
Coming up in Thailand
- Jan 1New Year's Day
- Apr 6Chakri Day
- Apr 13Songkran
Long weekends in December
Thailand has 3 long weekends in December 2026
King Bhumibol's Birthday & King Bhumibol's Birthday Observed · 5d · Constitution Day · 4d · New Year's Eve · 4d
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