Average annual temperature is 25.4 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: 9.9 °C
Number of sunny days: 152 days
Number of rainy days: 213 days
Look at detailed online map of Changwat Chiang Rai
* Weather data for Changwat 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) | 30.7 | 33.9 | 35.9 | 38.3 | 39.0 | 37.1 | 35.9 | 32.8 | 33.3 | 32.0 | 30.8 | 29.7 |
| Average daytime temperature (°C) | 27.5 | 30.0 | 32.6 | 36.2 | 34.5 | 32.3 | 32.3 | 30.2 | 30.2 | 29.2 | 28.4 | 27.2 |
| Average temperature (°C) | 20.5 | 23.0 | 25.2 | 28.8 | 28.8 | 27.5 | 27.7 | 26.3 | 26.1 | 25.3 | 23.1 | 21.8 |
| Average night temperature (°C) | 13.1 | 15.5 | 18.4 | 21.5 | 23.6 | 23.8 | 23.9 | 23.4 | 23.0 | 22.0 | 18.7 | 16.9 |
| Absolute minimum temperature (°C) | 9.9 | 11.9 | 15.1 | 18.4 | 21.3 | 22.5 | 23.1 | 22.4 | 22.0 | 20.5 | 14.4 | 11.7 |
| 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 | 9.7 | 10.8 | 10.7 | 9.3 | 10.0 | 7.2 | 8.4 | 9.0 | 9.8 | 9.5 |
| Precipitation (mm) | 0 | 37 | 21 | 19 | 189 | 324 | 287 | 383 | 493 | 282 | 48 | 37 |
| Sunny days | 29 | 21 | 27 | 25 | 11 | 0 | 1 | 2 | 3 | 1 | 15 | 17 |
| Rainy days | 2 | 7 | 4 | 5 | 20 | 30 | 30 | 29 | 27 | 30 | 15 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Changwat Chiang Rai is at