Climate averages 1991–2020
Chanthaburi weather
in August.
A hot, very wet month: the joint 10th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Chanthaburi: daytime highs average 28.8°C and nights cool to about 24.9°C. By daytime temperature it is the joint 10th warmest of the 12 months.
Expect about 328 mm of rain on roughly 29 days, which makes August a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 32 min on an average August day.
The nearest other city in this atlas is Rayong (92 km away). In August its highs average 29.6°C, 0.9°C warmer than Chanthaburi, with 196 mm of rain.
Among the 46 cities listed in Thailand, Chanthaburi ranks 45th of 46 for the warmest August highs and 43rd of 46 for the driest August (rainfall, lowest first). The mean August high of those 46 cities is 30.7°C; Chanthaburi is 1.9°C cooler than that mean.
From August to September, average highs stay level at 28.7°C, and monthly rainfall rises from 328 mm to 363 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
Chanthaburi climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.4°C22.2°C | 22.2°C | 29 | 6.2 | 11.511 h |
| February | 30.7°C23.2°C | 23.2°C | 33 | 8.2 | 11.712 h |
| March | 30.9°C24.6°C | 24.6°C | 85 | 15.1 | 12.112 h |
| April | 31.0°C25.4°C | 25.4°C | 122 | 18.8 | 12.412 h |
| May | 30.0°C25.5°C | 25.5°C | 320 | 28.2 | 12.713 h |
| June | 29.2°C25.3°C | 25.3°C | 384 | 28.4 | 12.913 h |
| July | 28.8°C25.0°C | 25.0°C | 369 | 29.6 | 12.813 h |
| August, selected | 28.8°C24.9°C | 24.9°C | 328 | 29.2 | 12.513 h |
| September | 28.7°C24.5°C | 24.5°C | 363 | 28.8 | 12.212 h |
| October | 29.4°C24.0°C | 24.0°C | 238 | 23.0 | 11.912 h |
| November | 29.9°C23.4°C | 23.4°C | 46 | 7.9 | 11.612 h |
| December | 30.0°C22.3°C | 22.3°C | 16 | 3.2 | 11.411 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
- Rayong in AugustThailand · 92 kmHigh 29.6°C · Low 25.7°C · 196 mm rain
- Paoy Paet in AugustCambodia · 127 kmHigh 30.4°C · Low 24.4°C · 181 mm rain
- Battambang in AugustCambodia · 131 kmHigh 32.1°C · Low 25.2°C · 124 mm rain
- Pattaya in AugustThailand · 137 kmHigh 30.2°C · Low 26.1°C · 153 mm rain
- Si Racha in AugustThailand · 142 kmHigh 30.4°C · Low 26.0°C · 136 mm rain
- Laem Chabang in AugustThailand · 143 kmHigh 29.8°C · Low 26.2°C · 153 mm rain
- Chon Buri in AugustThailand · 147 kmHigh 30.8°C · Low 25.6°C · 136 mm rain
- Kabin Buri in AugustThailand · 155 kmHigh 29.9°C · Low 23.9°C · 271 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 Chanthaburi) is explained once on the Chanthaburi year overview and on the Sources, method and limits page.