Thailand in december: average Weather, Temperature and Climate, Where to go?
Weather in Thailand in december 2025
Below, check out the weather forecast for december for most popular cities in Thailand. These datas are statistics for december from weather reports for over 10 years. The percentage indicates the possibility of having the weather mentioned.
Average weather in december in Bangkok
perfect weather UV index: 8
Weather at 6am
77°F
Clear/Sunny
65% of time
22%
8%
5%
Weather at 12pm
90°F
Clear/Sunny
61% of time
30%
6%
5%
Weather at 6pm
85°F
Clear/Sunny
54% of time
34%
8%
5%
Weather at 3am
77°F
65%
24%
8%
3%
Where to go in Thailand in december?
Where to go in Thailand in december: destination map
Where to go in each region in december?
| Central Thailand (Bangkok, Hua Hin, Kanchanaburi...) | 85°F to 92°F | 0 à 2 days | 83°F to 85°F | perfect weather |
| East of Thailand (Pattaya, Koh Chang, Chanthaburi...) | 86°F to 92°F | 0 à 5 days | 83°F to 85°F | perfect weather* |
| Northeastern Thailand (Isan) (Khon Kaen, Ubon Ratchathani (Isan), Nakhon Ratchasima...) | 79°F to 90°F | 0 à 1 days | perfect weather | |
| Northern thailand (Chiang Mai, Chiang Rai, Pai...) | 79°F to 90°F | 1 à 3 days | perfect weather* | |
| Phuket (Phuket town, Patong, Kata Beach...) | 85°F | 13 à 15 days | 85°F | tolerable weather |
| Southern Thailand (Koh Samui, Khao Lak national Park, Krabi - Ao Nang...) | 85°F to 88°F | 5 à 18 days | 85°F | tolerable weather* |
Where should you go in Thailand in december when it comes to the weather?
Remember:
The climate in Thailand in december ranges from perfect to tolerable depending on the region and city.
The climate in Thailand throughout December is synonymous with superb weather in Thailand, with an omnipresent sun and very few showers. Since the end of November, temperatures continue to drop significantly, offering an excellent opportunity for outdoor activities and lazing on the beaches of Phuket or Koh Samui. With such excellent weather, December sees the start of the high tourist season, with a peak during the holiday season.
Bangkok and Central Thailand in December
Bangkok and the Central region enter the hot and dry season. The sky is clear and the air pleasant with temperatures ranging from 20° C to 31° C on average. The capital regains close to 9 hours of daily sunshine (compared to 8 hours in November). This is the ideal time to enjoy a holiday in the country of happiness!
East of Thailand in December
Warm, dry and sunny climate is present for the whole of the East. The tourists arrive in bulk, enjoying the sweetness of Pattaya and Koh Chang - with a sea at 28° C and a thermometer displaying 22° C at night at 31° C during the day.
Northern Thailand in December
The North and Chiang Mai regains a daily sunshine of 9 hours with temperatures between 21° C and 31° C, but falling sometimes down to 15° C. Hikers will include a sweater in their luggage, especially when at high altitudes. The risk of rain is minimal.
Northeast Thailand in December
December in the Northeast sees temperatures falling for averages ranging from 17° C to 29° C. The showers are rare and the sky offers a beautiful sun. This is the perfect time for a green vacation and for the discovery of the hinterland.
Southeast Thailand in December
It continues to rain a little on the south coast of the Gulf of Thailand, but the sun is present with an average temperature of 27° C and a sea of the same temperature. The southeastern islands of Koh Tao, Koh Phangan and Koh Samui are experiencing strong tourist activity with the run-up to the New Year in January.
Southwestern Thailand in December
The Southwest offers a dry climate in December with a noticeable reduction of showers in Koh Lanta and Phuket. Such allows for a temperature range between 23-24° C and 31° C. The water shows a pleasant 28° C. December is a very good time for a stay in the islands of southwestern Thailand.
Climate in Thailand in december
Climate in Bangkok in december
In december, the mean temperature in Bangkok is 85°F (maximum temperature is 90°F and minimum temperature is 77°F). The climate is very hot there in december. With just 0.9in over 1 days, the rain will not be a problem during your journey.
With a good climate, december is an advisable month to go there in Thailand.
| December | |||
| Average temperature | 85°F | ||
| Highest temperature | 90°F | ||
| Lowest temperature | 77°F | ||
| Sea temperature | 83°F | ||
| Rainfall | 0.9in | ||
| Number of days with rainfall | 1 day(s) (4%) | ||
| Humidity | 69% | ||
| Daily sunshine hours | 9 | ||
| Cloud cover | 23% | ||
| Length of day | 11:20 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Chanthaburi in december
In december, maximum temperature is 88°F and minimum temperature is 74°F (for an average temperature of 81°F). The climate is very warm in that area in december. With just 1.3in over 2 days, the rain will not be a problem during your trip.
With a good climate, december is a good time to go in this city in Thailand.
| December | |||
| Average temperature | 81°F | ||
| Highest temperature | 88°F | ||
| Lowest temperature | 74°F | ||
| Sea temperature | 84°F | ||
| Rainfall | 1.3in | ||
| Number of days with rainfall | 2 day(s) (6%) | ||
| Humidity | 79% | ||
| Daily sunshine hours | 9 | ||
| Cloud cover | 20% | ||
| Length of day | 11:24 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Chiang Mai in december
In the month of december, maximum temperature is 86°F and minimum temperature is 61°F (for an average temperature of 74°F). The climate good in that area in december. does not rain (or really exceptionally) during december. You will therefore be at the shelter from rain throughout your trip!
With a good climate, the month of december is an advisable month to go in that area.
| December | |||
| Average temperature | 74°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 61°F | ||
| Rainfall | 0.5in | ||
| Number of days with rainfall | 1 day(s) (2%) | ||
| Humidity | 88% | ||
| Daily sunshine hours | 9 | ||
| Cloud cover | 18% | ||
| Length of day | 11:01 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Chiang Rai in december
In the month of december, the mean temperature in Chiang Rai is 72°F (maximum temperature is 85°F and minimum temperature is 59°F). The climate pleasant around this city in the month of december. With about 1in over 1 days,
it rains very little throughout your stay.
With good weather conditions, the month of december is a good time to go in Chiang Rai in Thailand.
| December | |||
| Average temperature | 72°F | ||
| Highest temperature | 85°F | ||
| Lowest temperature | 59°F | ||
| Rainfall | 1in | ||
| Number of days with rainfall | 1 day(s) (5%) | ||
| Humidity | 91% | ||
| Daily sunshine hours | 9 | ||
| Cloud cover | 24% | ||
| Length of day | 10:56 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Hua Hin in december
In the month of december, maximum temperature is 85°F and minimum temperature is 76°F (for an average temperature of 81°F). The climate is very hot in this location in this month. does not rain (or really exceptionally) during december. You will therefore be at the shelter from rain throughout your trip!
With a good weather, december is an advisable month to go in that area.
| December | |||
| Average temperature | 81°F | ||
| Highest temperature | 85°F | ||
| Lowest temperature | 76°F | ||
| Sea temperature | 83°F | ||
| Rainfall | 1.1in | ||
| Number of days with rainfall | 2 day(s) (5%) | ||
| Humidity | 75% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 21% | ||
| Length of day | 11:24 | ||
| Our opinion at whereandwhen.net | perfect |
All cities in Thailand in december
| Bangkok in december | perfect weather |
| Chanthaburi in december | perfect weather |
| Chiang Mai in december | perfect weather |
| Chiang Rai in december | perfect weather |
| Hua Hin in december | perfect weather |
| Kanchanaburi in december | perfect weather |
| Khao Lak national Park in december | good weather |
| Khon Kaen in december | perfect weather |
| Koh Chang in december | perfect weather |
| Koh Lanta in december | tolerable weather |
| Koh Phangan in december | tolerable weather |
| Koh Phi Phi in december | tolerable weather |
| Koh Samui in december | tolerable weather |
| Koh Tao in december | tolerable weather |
| Krabi - Ao Nang in december | good weather |
| Nakhon Ratchasima in december | perfect weather |
| Pattaya in december | perfect weather |
| Phuket in december | tolerable weather |
| Ubon Ratchathani (Isan) in december | perfect weather |
| Ayutthaya in december | perfect weather |
| Koh Kut (Koh Kood) in december | good weather |
Weather data for Thailand in december:
Weather data for Thailand in december is derived from an average of the weather forecast since 2009 in Thailand. There is a margin of error and these forecasts are to be considered as general information only. The weather in Thailand can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Thailand.