Best Time to Visit Bangkok
The best time to visit Bangkok is November to February, when the average temperature is 26–28°C and rainfall is low for Bangkok, at 10–49 mm a month.
Bangkok weather by month
The wettest month in Bangkok is September with 251 mm of rain, and the warmest is April at an average 30°C. The coolest is December at 26°C.
| Month | Average temperature | Rainfall | Verdict |
|---|---|---|---|
| January | 27°C / 80°F | 21 mm | Best |
| February | 28°C / 83°F | 16 mm | Best |
| March | 29°C / 85°F | 51 mm | Hot |
| April | 30°C / 86°F | 72 mm | Hot |
| May | 30°C / 85°F | 152 mm | Wet |
| June | 29°C / 84°F | 152 mm | Wet |
| July | 28°C / 83°F | 152 mm | Wet |
| August | 28°C / 83°F | 155 mm | Wet |
| September | 28°C / 82°F | 251 mm | Wet |
| October | 27°C / 81°F | 221 mm | Wet |
| November | 27°C / 80°F | 49 mm | Best |
| December | 26°C / 78°F | 10 mm | Best |
How we pick the best months
- Best: an average temperature of 15–28°C and low rainfall for Bangkok: under 150 mm, and no more than 140 mm, a quarter above Bangkok's median month (never set below 60 mm).
- If no month qualifies, we show the three driest months that average 10–30°C instead.
- Wet: 150 mm of rain or more. Rainy: more than 140 mm. Hot: 29°C or more on average. Cool: under 15°C. Cold: under 5°C.
Averages cover day and night, so afternoons are warmer than the figure shown. Weather is only one reason to pick a month: school holidays, festivals and prices matter too.
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Where these numbers come from
Monthly averages for January 2001 – December 2020 from the NASA POWER project, for the area around Suvarnabhumi (BKK) at 13.68, 100.75. The model covers a grid about 50 km across, so a coastal or hilly spot can run a degree or two different. Retrieved 12 September 2026.
The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center (LaRC) Prediction of Worldwide Energy Resource (POWER) Project funded through the NASA Earth Science/Applied Science Program.