Average annual temperature is 26.4 °C
Absolute maximum temperature: 39.6 °C
Absolute minimum temperature: 9.5 °C
Number of sunny days: 146 days
Number of rainy days: 219 days
Look at detailed online map of Chiang Khong
* Weather data for Chiang Khong 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 | 34.5 | 38.4 | 39.6 | 38.8 | 35.9 | 36.2 | 35.0 | 33.1 | 32.2 | 32.7 | 33.9 |
| Average daytime temperature (°C) | 28.2 | 31.9 | 34.7 | 37.4 | 34.6 | 32.3 | 32.5 | 30.5 | 30.2 | 30.5 | 30.8 | 30.2 |
| Average temperature (°C) | 21.3 | 25.1 | 27.9 | 30.9 | 29.0 | 27.7 | 27.7 | 26.5 | 26.3 | 25.8 | 24.9 | 23.5 |
| Average night temperature (°C) | 14.3 | 18.4 | 21.2 | 25.4 | 24.7 | 24.5 | 24.3 | 23.7 | 23.7 | 22.3 | 19.8 | 17.5 |
| Absolute minimum temperature (°C) | 9.5 | 13.2 | 15.1 | 21.7 | 22.4 | 23.4 | 23.2 | 22.7 | 23.0 | 20.9 | 16.4 | 11.8 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.5 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.9 | 10.6 | 10.4 | 11.1 | 10.5 | 9.1 | 9.6 | 7.0 | 7.4 | 9.3 | 10.0 | 10.1 |
| Precipitation (mm) | 5 | 2 | 3 | 51 | 157 | 200 | 135 | 193 | 354 | 191 | 20 | 2 |
| Sunny days | 28 | 25 | 23 | 20 | 3 | 1 | 0 | 0 | 0 | 3 | 18 | 25 |
| Rainy days | 3 | 3 | 8 | 10 | 28 | 29 | 31 | 31 | 30 | 28 | 12 | 6 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Chiang Khong is at