Average annual temperature is 25.4 °C
Absolute maximum temperature: 39.7 °C
Absolute minimum temperature: 10.7 °C
Number of sunny days: 146 days
Number of rainy days: 219 days
Look at detailed online map of Chiang Rai
* Weather data for Chiang Rai Thailand is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.5 | 34.1 | 37.3 | 39.5 | 39.7 | 36.5 | 36.0 | 32.8 | 33.1 | 31.6 | 30.4 | 29.5 |
| Average daytime temperature (°C) | 27.8 | 30.2 | 33.2 | 37.2 | 34.7 | 31.9 | 32.0 | 29.8 | 29.9 | 28.9 | 27.9 | 27.1 |
| Average temperature (°C) | 21.1 | 23.1 | 25.7 | 29.4 | 28.6 | 27.2 | 27.4 | 26.1 | 25.9 | 25.0 | 22.8 | 21.7 |
| Average night temperature (°C) | 13.9 | 16.0 | 18.6 | 21.7 | 23.5 | 23.7 | 23.8 | 23.3 | 23.0 | 21.8 | 18.4 | 16.9 |
| Absolute minimum temperature (°C) | 10.7 | 12.8 | 15.5 | 19.0 | 21.2 | 22.8 | 22.7 | 22.2 | 21.9 | 20.1 | 14.2 | 12.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 10.3 | 10.0 | 10.0 | 10.9 | 10.8 | 9.3 | 9.9 | 6.9 | 8.4 | 9.0 | 9.9 | 9.6 |
| Precipitation (mm) | 0 | 33 | 21 | 17 | 173 | 297 | 237 | 335 | 439 | 270 | 44 | 40 |
| Sunny days | 30 | 19 | 23 | 27 | 9 | 0 | 1 | 1 | 3 | 0 | 17 | 16 |
| Rainy days | 1 | 9 | 8 | 3 | 22 | 30 | 30 | 30 | 27 | 31 | 13 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Chiang Rai is at