Climate averages 1991–2020
Rayong weather
in August.
A hot, very wet month: the 10th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Rayong: daytime highs average 29.6°C and nights cool to about 25.7°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 196 mm of rain on roughly 25 days, which makes August a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 33 min on an average August day.
The nearest other city in this atlas is Pattaya (49 km away). In August its highs average 30.2°C, 0.6°C warmer than Rayong, with 153 mm of rain.
Among the 46 cities listed in Thailand, Rayong ranks 41st of 46 for the warmest August highs and 32nd of 46 for the driest August (rainfall, lowest first). The mean August high of those 46 cities is 30.7°C; Rayong is 1.1°C cooler than that mean.
From August to September, average highs fall by 0.3°C to 29.4°C, and monthly rainfall rises from 196 mm to 300 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
Rayong climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.4°C22.9°C | 22.9°C | 28 | 5.9 | 11.511 h |
| February | 30.7°C23.9°C | 23.9°C | 32 | 6.9 | 11.712 h |
| March | 31.0°C25.3°C | 25.3°C | 81 | 14.2 | 12.112 h |
| April | 31.4°C26.2°C | 26.2°C | 133 | 18.9 | 12.412 h |
| May | 30.7°C26.2°C | 26.2°C | 220 | 24.9 | 12.713 h |
| June | 30.0°C26.1°C | 26.1°C | 210 | 24.5 | 12.913 h |
| July | 29.7°C25.9°C | 25.9°C | 206 | 24.9 | 12.813 h |
| August, selected | 29.6°C25.7°C | 25.7°C | 196 | 24.9 | 12.513 h |
| September | 29.4°C25.1°C | 25.1°C | 300 | 26.4 | 12.212 h |
| October | 29.5°C24.4°C | 24.4°C | 256 | 23.2 | 11.912 h |
| November | 30.2°C24.0°C | 24.0°C | 59 | 8.5 | 11.612 h |
| December | 30.3°C23.0°C | 23.0°C | 17 | 3.3 | 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
- Pattaya in AugustThailand · 49 kmHigh 30.2°C · Low 26.1°C · 153 mm rain
- Laem Chabang in AugustThailand · 61 kmHigh 29.8°C · Low 26.2°C · 153 mm rain
- Si Racha in AugustThailand · 65 kmHigh 30.4°C · Low 26.0°C · 136 mm rain
- Chon Buri in AugustThailand · 81 kmHigh 30.8°C · Low 25.6°C · 136 mm rain
- Chanthaburi in AugustThailand · 92 kmHigh 28.8°C · Low 24.9°C · 328 mm rain
- Samut Prakan in AugustThailand · 125 kmHigh 30.8°C · Low 26.0°C · 114 mm rain
- Lat Krabang in AugustThailand · 127 kmHigh 31.2°C · Low 25.6°C · 165 mm rain
- Ban Khlong Prawet in AugustThailand · 131 kmHigh 31.2°C · Low 25.7°C · 165 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 Rayong) is explained once on the Rayong year overview and on the Sources, method and limits page.