Public holidays in Thailand — December 2025

3 public holidays in Thailand during December 2025: King Bhumibol's Birthday/Father's Day, Constitution Day, New Year's Eve.

Public holidays

• Fri, Dec 5
  King Bhumibol's Birthday/Father's Day Public holiday
• Wed, Dec 10
  Constitution Day Public holiday
• Wed, Dec 31
  New Year's Eve Public holiday

Other observances

• Sun, Dec 21
  December Solstice Seasonal observance
• Sun, Dec 21
  Winter Solstice Seasonal observance
• Wed, Dec 24
  Christmas Eve Observance
• Thu, Dec 25
  Christmas Day Observance