Bangkok weather in December
In December, Bangkok has an average high of 31 °C87 °F and an average low of 19 °C67 °F, with about 10 mm0.4 in of precipitation. December is the coldest month of the year and the driest.
How December compares with other months
Compared with November, December is 0.9 °C1.7 °F cooler on average and drier by 29 mm1.1 in. Compared with January, December is 1.3 °C2.3 °F cooler on average and drier by 7 mm0.3 in. Daylight lasts about 11.3 hours around the middle of the month. Average relative humidity is 71% and the average cloud amount 47%.
Is December a good time to visit Bangkok?
Yes — December is one of the most comfortable months to visit Bangkok by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in December
For Bangkok in December, pack very light, breathable clothing, a sun hat and plenty of water.
December in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Bangkok | 3187 | 1967 | 100.4 |
| Samut Prakan | 3086 | 2170 | 100.4 |
| Khlong Luang | 3187 | 1967 | 100.4 |
| Nakhon Pathom | 3187 | 1967 | 90.4 |
| Ban I Chang | 3086 | 2069 | 100.4 |
| Chon Buri | 3086 | 2067 | 80.3 |
| Si Racha | 2983 | 2476 | 140.6 |
| Pattaya | 2983 | 2576 | 140.6 |
| Kanchanaburi | 3085 | 1967 | 70.3 |
Nearby places that are more than 1 °C1.8 °F warmer in December: Si Racha and Pattaya.
Other months in Bangkok
- January33 °C91 °F / 20 °C68 °F
- February35 °C95 °F / 22 °C72 °F
- March36 °C97 °F / 24 °C76 °F
- April36 °C97 °F / 25 °C78 °F
- May33 °C92 °F / 25 °C78 °F
- June32 °C89 °F / 25 °C77 °F
- July31 °C88 °F / 24 °C75 °F
- August31 °C88 °F / 24 °C75 °F
- September30 °C87 °F / 24 °C75 °F
- October30 °C86 °F / 24 °C74 °F
- November30 °C86 °F / 21 °C71 °F
- December31 °C87 °F / 19 °C67 °F
Frequently asked questions
How warm is Bangkok in December?
In December the average high in Bangkok is 31 °C (87 °F) and the average low is 19 °C (67 °F).
Does it rain a lot in Bangkok in December?
On average about 10 mm (0.4 in) of precipitation falls in December; it ranks 12th of the 12 months.
Is December the warmest month in Bangkok?
No. The warmest month in Bangkok is March, with an average high of 36 °C (97 °F). The coldest month is December, with an average low of 19 °C (67 °F).
How long is the day in Bangkok in December?
In the middle of December the day in Bangkok lasts about 11.3 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Bangkok in December?
The average relative humidity in December is about 71%. Combined with warm days, it can feel muggy.
How cloudy is Bangkok in December?
On average about 47% of the sky is covered by cloud in December. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.