Average annual temperature is 25.5 °C
Absolute maximum temperature: 39.1 °C
Absolute minimum temperature: 11.0 °C
Number of sunny days: 146 days
Number of rainy days: 219 days
Look at detailed online map of Wiang Chai
* Weather data for Wiang Chai 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) | 29.7 | 32.9 | 35.8 | 38.3 | 39.1 | 37.3 | 35.9 | 33.5 | 33.2 | 32.3 | 30.8 | 30.1 |
| Average daytime temperature (°C) | 27.2 | 29.6 | 32.3 | 35.8 | 34.6 | 32.6 | 32.7 | 30.8 | 30.4 | 29.4 | 28.7 | 27.9 |
| Average temperature (°C) | 20.4 | 22.7 | 25.2 | 28.9 | 28.9 | 27.7 | 27.9 | 26.5 | 26.1 | 25.3 | 23.5 | 22.4 |
| Average night temperature (°C) | 13.5 | 15.9 | 18.8 | 22.4 | 24.0 | 24.0 | 24.0 | 23.5 | 23.0 | 22.1 | 19.0 | 17.4 |
| Absolute minimum temperature (°C) | 11.0 | 12.9 | 14.8 | 19.3 | 21.6 | 22.5 | 22.9 | 22.7 | 21.8 | 20.6 | 14.7 | 11.9 |
| 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 | 11.0 |
| 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 | 9.6 | 10.7 | 10.6 | 9.2 | 9.8 | 7.3 | 8.0 | 8.8 | 9.8 | 9.5 |
| Precipitation (mm) | 2 | 29 | 17 | 12 | 184 | 302 | 311 | 331 | 469 | 289 | 69 | 41 |
| Sunny days | 27 | 19 | 26 | 27 | 12 | 0 | 2 | 1 | 1 | 0 | 16 | 15 |
| Rainy days | 4 | 9 | 5 | 3 | 19 | 30 | 29 | 30 | 29 | 31 | 14 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Wiang Chai is at