Climate averages 1991–2020
Chiang Rai weather
in August.
A hot, very wet month: the 7th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Chiang Rai: daytime highs average 29.2°C and nights cool to about 23.2°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 383 mm of rain on roughly 29 days, which makes August a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 48 min on an average August day.
The nearest other city in this atlas is Chiang Mai (153 km away). In August its highs average 29.1°C, about as warm as Chiang Rai, with 236 mm of rain.
Among the 46 cities listed in Thailand, Chiang Rai ranks 42nd of 46 for the warmest August highs and 46th of 46 for the driest August (rainfall, lowest first). The mean August high of those 46 cities is 30.7°C; Chiang Rai is 1.5°C cooler than that mean.
From August to September, average highs fall by 0.2°C to 29.0°C, and monthly rainfall falls from 383 mm to 295 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
Chiang Rai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.6°C15.0°C | 15.0°C | 22 | 3.0 | 11.111 h |
| February | 30.0°C16.2°C | 16.2°C | 14 | 2.5 | 11.511 h |
| March | 33.0°C19.3°C | 19.3°C | 42 | 5.1 | 12.012 h |
| April | 33.6°C22.4°C | 22.4°C | 132 | 11.8 | 12.613 h |
| May | 31.5°C23.4°C | 23.4°C | 292 | 22.8 | 13.113 h |
| June | 30.4°C23.7°C | 23.7°C | 297 | 26.2 | 13.313 h |
| July | 29.5°C23.4°C | 23.4°C | 398 | 28.4 | 13.213 h |
| August, selected | 29.2°C23.2°C | 23.2°C | 383 | 28.8 | 12.813 h |
| September | 29.0°C22.9°C | 22.9°C | 295 | 25.1 | 12.312 h |
| October | 28.4°C21.6°C | 21.6°C | 139 | 17.8 | 11.712 h |
| November | 27.2°C18.4°C | 18.4°C | 49 | 6.6 | 11.211 h |
| December | 25.5°C15.4°C | 15.4°C | 27 | 3.7 | 11.011 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
- Chiang Mai in AugustThailand · 153 kmHigh 29.1°C · Low 23.4°C · 236 mm rain
- Lampang in AugustThailand · 183 kmHigh 29.0°C · Low 23.4°C · 272 mm rain
- Kēng Tung in AugustMyanmar · 192 kmHigh 28.3°C · Low 21.7°C · 309 mm rain
- Möng Yang in AugustMyanmar · 216 kmHigh 26.9°C · Low 20.4°C · 287 mm rain
- Yunjinghong in AugustChina · 255 kmHigh 29.5°C · Low 22.4°C · 313 mm rain
- Menglang in AugustChina · 295 kmHigh 26.6°C · Low 19.9°C · 245 mm rain
- Taunggyi in AugustMyanmar · 307 kmHigh 23.0°C · Low 17.5°C · 194 mm rain
- Yawnghwe in AugustMyanmar · 314 kmHigh 25.9°C · Low 20.6°C · 194 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 Chiang Rai) is explained once on the Chiang Rai year overview and on the Sources, method and limits page.