Climate averages 1991–2020
Si Racha weather
in August.
A hot, wet month: the 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 Si Racha: daytime highs average 30.4°C and nights cool to about 26.0°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 136 mm of rain on roughly 23 days, which makes August a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 34 min on an average August day.
The nearest other city in this atlas is Laem Chabang (11 km away). In August its highs average 29.8°C, 0.6°C cooler than Si Racha, with 153 mm of rain.
Among the 46 cities listed in Thailand, Si Racha ranks 32nd of 46 for the warmest August highs and joint 9th of 46 for the driest August (rainfall, lowest first). The mean August high of those 46 cities is 30.7°C; Si Racha is 0.3°C cooler than that mean.
From August to September, average highs fall by 0.3°C to 30.1°C, and monthly rainfall rises from 136 mm to 232 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
Si Racha climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.0°C22.5°C | 22.5°C | 22 | 4.7 | 11.411 h |
| February | 31.8°C23.8°C | 23.8°C | 23 | 5.1 | 11.712 h |
| March | 32.6°C25.4°C | 25.4°C | 58 | 10.6 | 12.112 h |
| April | 33.1°C26.4°C | 26.4°C | 90 | 14.1 | 12.412 h |
| May | 32.1°C26.6°C | 26.6°C | 145 | 21.2 | 12.713 h |
| June | 31.2°C26.5°C | 26.5°C | 123 | 20.9 | 12.913 h |
| July | 30.6°C26.2°C | 26.2°C | 133 | 22.5 | 12.813 h |
| August, selected | 30.4°C26.0°C | 26.0°C | 136 | 23.3 | 12.613 h |
| September | 30.1°C25.4°C | 25.4°C | 232 | 25.1 | 12.212 h |
| October | 30.1°C24.5°C | 24.5°C | 195 | 21.7 | 11.812 h |
| November | 30.6°C23.7°C | 23.7°C | 43 | 7.1 | 11.512 h |
| December | 30.5°C22.4°C | 22.4°C | 12 | 2.6 | 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
- Laem Chabang in AugustThailand · 11 kmHigh 29.8°C · Low 26.2°C · 153 mm rain
- Chon Buri in AugustThailand · 22 kmHigh 30.8°C · Low 25.6°C · 136 mm rain
- Pattaya in AugustThailand · 27 kmHigh 30.2°C · Low 26.1°C · 153 mm rain
- Samut Prakan in AugustThailand · 59 kmHigh 30.8°C · Low 26.0°C · 114 mm rain
- Lat Krabang in AugustThailand · 63 kmHigh 31.2°C · Low 25.6°C · 165 mm rain
- Rayong in AugustThailand · 65 kmHigh 29.6°C · Low 25.7°C · 196 mm rain
- Ban Khlong Prawet in AugustThailand · 66 kmHigh 31.2°C · Low 25.7°C · 165 mm rain
- Thung Khru in AugustThailand · 68 kmHigh 30.9°C · Low 25.9°C · 144 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 Si Racha) is explained once on the Si Racha year overview and on the Sources, method and limits page.
Chon Buri lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.