Climate averages 1991–2020
Bangkok weather
in April.
A very hot, moderately wet month: the warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a very hot month in Bangkok: daytime highs average 34.6°C and nights cool to about 26.6°C. By daytime temperature it is the warmest month of the year.
Expect about 68 mm of rain on roughly 10 days, which makes April a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average April day.
The nearest other city in this atlas is Watthana (9 km away). In April its highs average 34.1°C, 0.5°C cooler than Bangkok, with 68 mm of rain.
Among the 46 cities listed in Thailand, Bangkok ranks joint 16th of 46 for the warmest April highs and joint 10th of 46 for the driest April (rainfall, lowest first). The mean April high of those 46 cities is 33.9°C; Bangkok is 0.7°C warmer than that mean.
From April to May, average highs fall by 1.3°C to 33.4°C, and monthly rainfall rises from 68 mm to 130 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Watthana in AprilThailand · 9 kmHigh 34.1°C · Low 26.7°C · 68 mm rain
- Chatuchak in AprilThailand · 10 kmHigh 34.4°C · Low 26.5°C · 68 mm rain
- Phra Pradaeng in AprilThailand · 11 kmHigh 34.3°C · Low 26.9°C · 68 mm rain
- Mueang Nonthaburi in AprilThailand · 12 kmHigh 35.2°C · Low 26.5°C · 68 mm rain
- Bang Khae in AprilThailand · 12 kmHigh 34.6°C · Low 27.0°C · 68 mm rain
- Thawi Watthana in AprilThailand · 14 kmHigh 35.1°C · Low 26.8°C · 68 mm rain
- Thung Khru in AprilThailand · 14 kmHigh 33.7°C · Low 27.2°C · 68 mm rain
- Nong Khaem in AprilThailand · 17 kmHigh 34.7°C · Low 26.9°C · 75 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.