Climate averages 1991–2020
Surat Thani weather
in August.
A hot, wet month: the 7th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Surat Thani: daytime highs average 30.9°C and nights cool to about 24.3°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 108 mm of rain on roughly 20 days, which makes August a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 25 min on an average August day.
The nearest other city in this atlas is Nakhon Si Thammarat (105 km away). In August its highs average 30.7°C, about as warm as Surat Thani, with 117 mm of rain.
Among the 46 cities listed in Thailand, Surat Thani ranks joint 24th of 46 for the warmest August highs and 3rd of 46 for the driest August (rainfall, lowest first). The mean August high of those 46 cities is 30.7°C; Surat Thani is 0.2°C warmer than that mean.
From August to September, average highs fall by 0.7°C to 30.2°C, and monthly rainfall rises from 108 mm to 154 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
Surat Thani climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.6°C22.6°C | 22.6°C | 68 | 9.5 | 11.712 h |
| February | 31.8°C22.9°C | 22.9°C | 32 | 4.8 | 11.812 h |
| March | 33.3°C24.0°C | 24.0°C | 92 | 9.1 | 12.112 h |
| April | 33.4°C24.9°C | 24.9°C | 114 | 14.4 | 12.312 h |
| May | 32.1°C24.9°C | 24.9°C | 124 | 22.1 | 12.513 h |
| June | 31.3°C24.6°C | 24.6°C | 95 | 18.6 | 12.613 h |
| July | 31.1°C24.4°C | 24.4°C | 89 | 18.4 | 12.613 h |
| August, selected | 30.9°C24.3°C | 24.3°C | 108 | 19.7 | 12.412 h |
| September | 30.2°C23.9°C | 23.9°C | 154 | 23.6 | 12.212 h |
| October | 29.2°C23.6°C | 23.6°C | 268 | 27.3 | 11.912 h |
| November | 28.6°C23.5°C | 23.5°C | 267 | 23.5 | 11.712 h |
| December | 28.4°C23.1°C | 23.1°C | 149 | 15.7 | 11.612 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
- Nakhon Si Thammarat in AugustThailand · 105 kmHigh 30.7°C · Low 24.0°C · 117 mm rain
- Phuket in AugustThailand · 173 kmHigh 28.1°C · Low 26.2°C · 276 mm rain
- Ban Mai in AugustThailand · 253 kmHigh 30.8°C · Low 25.8°C · 86 mm rain
- Hat Yai in AugustThailand · 268 kmHigh 31.0°C · Low 24.5°C · 121 mm rain
- Alor Setar in AugustMalaysia · 354 kmHigh 29.7°C · Low 24.5°C · 232 mm rain
- Yala in AugustThailand · 360 kmHigh 32.3°C · Low 23.4°C · 125 mm rain
- Pendang in AugustMalaysia · 372 kmHigh 29.9°C · Low 24.0°C · 211 mm rain
- Myeik in AugustMyanmar · 376 kmHigh 27.9°C · Low 23.9°C · 657 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 Surat Thani) is explained once on the Surat Thani year overview and on the Sources, method and limits page.