Monthly register
Tonga public holidays in September 2026
Tonga has 1 public holiday in September 2026.
September 2026 in Tonga runs 30 calendar days, Northern-hemisphere autumn and Southern-hemisphere spring. Tonga observes one public holiday in September 2026: Birthday of Crown Prince Tupouto'a-'Ulukalala. One of those — Birthday of Crown Prince Tupouto'a-'Ulukalala — falls on a weekday and reduces the working-day count by one. That leaves 21 working days for Tonga businesses, payroll cycles, and project schedules in September 2026. September brings Labor Day in the US and Canada (first Monday) and the start of the Jewish High Holy Days in many years. For broader context, see the full 2026 calendar for Tonga or the global view of holidays observed in September 2026 across all 190 countries we cover.
21
Working days
8
Weekend days
1
Public holidays
30
Days in September
- Sep17
Birthday of Crown Prince Tupouto'a-'Ulukalala
Thursday, September 17, 2026
Coming up in Tonga
- Nov 2Constitution Day Holiday
- Dec 7Holiday for Anniversary of the Coronation of King Tupou I
- Dec 25Christmas Day
Long weekend in September
Tonga has a long weekend in September 2026
Birthday of Crown Prince Tupouto'a-'Ulukalala · 4d
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