Average annual temperature is 25.0 °C
Absolute maximum temperature: 42.2 °C
Absolute minimum temperature: 5.6 °C
Number of sunny days: 144 days
Number of rainy days: 221 days
Look at detailed online map of Ban So
* Weather data for Ban So Laos is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 32.3 | 35.9 | 38.2 | 41.7 | 41.9 | 42.2 | 39.4 | 34.5 | 35.4 | 35.7 | 34.9 | 33.5 |
| Average daytime temperature (°C) | 25.3 | 29.6 | 31.9 | 36.1 | 37.5 | 33.9 | 35.4 | 31.1 | 32.1 | 32.7 | 30.0 | 26.9 |
| Average temperature (°C) | 17.4 | 21.8 | 23.9 | 27.9 | 29.7 | 28.0 | 29.0 | 27.0 | 26.8 | 25.9 | 22.8 | 20.3 |
| Average night temperature (°C) | 10.2 | 15.7 | 17.7 | 21.5 | 24.1 | 24.4 | 24.5 | 23.9 | 23.1 | 20.6 | 17.4 | 15.0 |
| Absolute minimum temperature (°C) | 5.6 | 9.3 | 12.9 | 17.6 | 21.3 | 23.2 | 22.7 | 20.5 | 21.2 | 16.9 | 12.1 | 6.8 |
| 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 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 11.0 | 11.5 | 12.0 | 12.6 | 13.1 | 13.4 | 13.3 | 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 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.4 | 8.2 | 7.8 | 9.3 | 10.1 | 8.6 | 10.4 | 7.0 | 9.2 | 9.8 | 8.7 | 7.4 |
| Precipitation (mm) | 1 | 23 | 38 | 27 | 60 | 274 | 155 | 263 | 152 | 28 | 11 | 8 |
| Sunny days | 25 | 17 | 15 | 18 | 8 | 0 | 1 | 0 | 2 | 17 | 20 | 21 |
| Rainy days | 6 | 11 | 16 | 12 | 23 | 30 | 30 | 31 | 28 | 14 | 10 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban So is at