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Thailand weather in December 2025
Expect daytime maximum temperatures of 88°F in Thailand in December and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average.
- 88°F max day temperature
88 - 8 hours of sunshine per day
- 1 day with some rainfall
1 - 70°F min night temperature
70 - 11 hours of daylight per day
11 - High heat & humidity
H - 0.4 inches of monthly rainfall
0.4 - 9 (Very High) UV index
9
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The December weather guide for Thailand (Bangkok) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Thailand destinations
Below are average maximum temperatures at popular countries, regions and places in Thailand in December. Select a holiday destination to see more weather parameters.
All Thailand destinations
- Bangkok
- Cha Am
- Chiang Mai
- Chiang Rai
- Hat Yai
- Hua Hin
- Kanchanaburi
- Khao Lak
- Khao Sok National Park
- Khao Yai National Park
- Koh Chang
- Koh Samui
- Krabi
- Mae Hong Son
- Nakhon Ratchasima
- Nan
- Nong Khai
- Pattaya
- Phi Phi
- Phuket
- Sukhothai
- Surat Thani
- Ubon Ratchathani
- Udon Thani
Metric (°C) | Imperial (°F)
More about Thailand
How hot is it in Thailand in December?
Daytime temperatures usually reach 88°F in Bangkok, Thailand in December with high heat and humidity, falling to 70°F at night.
How sunny is it in Thailand in December?
There are normally 8 hours of bright sunshine each day in Bangkok, Thailand in December - that's 73% of daylight hours.
Does it ever rain in Thailand in December?
There is usually 1 day with some rain in Bangkok, Thailand in December and the average monthly rainfall is 0.4 inches.
Thailand December sunrise & sunset times
Browse the sunrise and sunset times for Thailand in December 2025. Select a month to view Thailand sunrise and sunset times for the next 12 months. The Thailand sunrise and sunset times shown below are for Bangkok.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Monday, 1st December 2025 | 06:26 | 17:48 |
| Tuesday, 16th December 2025 | 06:34 | 17:53 |
| Wednesday, 31st December 2025 | 06:41 | 18:01 |
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