Climate averages 1991–2020
Bangkok weather
in August.
A hot, wet month: the 7th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Bangkok: daytime highs average 31.4°C and nights cool to about 25.4°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 144 mm of rain on roughly 24 days, which makes August a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 35 min on an average August day.
The nearest other city in this atlas is Watthana (9 km away). In August its highs average 31.1°C, about as warm as Bangkok, with 144 mm of rain.
Among the 46 cities listed in Thailand, Bangkok ranks joint 8th of 46 for the warmest August highs and joint 12th of 46 for the driest August (rainfall, lowest first). The mean August high of those 46 cities is 30.7°C; Bangkok is 0.7°C warmer than that mean.
From August to September, average highs fall by 0.4°C to 30.9°C, and monthly rainfall rises from 144 mm to 237 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Bangkok climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.0°C21.7°C | 21.7°C | 15 | 2.9 | 11.411 h |
| February | 32.3°C23.4°C | 23.4°C | 13 | 2.8 | 11.712 h |
| March | 33.6°C25.4°C | 25.4°C | 41 | 6.3 | 12.012 h |
| April | 34.6°C26.6°C | 26.6°C | 68 | 10.3 | 12.412 h |
| May | 33.4°C26.5°C | 26.5°C | 130 | 20.0 | 12.813 h |
| June | 32.3°C26.0°C | 26.0°C | 127 | 21.8 | 12.913 h |
| July | 31.7°C25.6°C | 25.6°C | 134 | 22.9 | 12.913 h |
| August, selected | 31.4°C25.4°C | 25.4°C | 144 | 23.6 | 12.613 h |
| September | 30.9°C24.9°C | 24.9°C | 237 | 25.3 | 12.212 h |
| October | 30.4°C24.1°C | 24.1°C | 191 | 20.7 | 11.812 h |
| November | 30.9°C23.1°C | 23.1°C | 42 | 6.4 | 11.512 h |
| December | 30.6°C21.7°C | 21.7°C | 9.5 | 1.7 | 11.311 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Watthana in AugustThailand · 9 kmHigh 31.1°C · Low 25.6°C · 144 mm rain
- Chatuchak in AugustThailand · 10 kmHigh 31.2°C · Low 25.4°C · 144 mm rain
- Phra Pradaeng in AugustThailand · 11 kmHigh 31.2°C · Low 25.6°C · 144 mm rain
- Mueang Nonthaburi in AugustThailand · 12 kmHigh 31.6°C · Low 25.2°C · 144 mm rain
- Bang Khae in AugustThailand · 12 kmHigh 31.4°C · Low 25.7°C · 144 mm rain
- Thawi Watthana in AugustThailand · 14 kmHigh 31.6°C · Low 25.5°C · 144 mm rain
- Thung Khru in AugustThailand · 14 kmHigh 30.9°C · Low 25.9°C · 144 mm rain
- Nong Khaem in AugustThailand · 17 kmHigh 31.4°C · Low 25.6°C · 155 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bangkok) is explained once on the Bangkok year overview and on the Sources, method and limits page.
Mueang Nonthaburi, Phra Pradaeng and Bang Khae lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.