Average annual temperature is 25.1 °C
Absolute maximum temperature: 39.6 °C
Absolute minimum temperature: 10.1 °C
Number of sunny days: 145 days
Number of rainy days: 220 days
Look at detailed online map of Ban Son
* Weather data for Ban Son 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) | 28.6 | 32.3 | 35.3 | 38.1 | 39.6 | 37.5 | 35.2 | 33.2 | 34.0 | 32.0 | 31.1 | 31.2 |
| Average daytime temperature (°C) | 26.4 | 29.5 | 32.5 | 36.0 | 34.4 | 31.6 | 32.0 | 30.1 | 30.3 | 29.3 | 29.1 | 28.5 |
| Average temperature (°C) | 19.4 | 22.3 | 25.2 | 28.5 | 28.6 | 26.8 | 27.2 | 26.1 | 26.0 | 25.1 | 23.3 | 22.4 |
| Average night temperature (°C) | 12.8 | 15.7 | 18.8 | 21.9 | 23.8 | 23.5 | 23.7 | 23.2 | 22.9 | 22.0 | 18.5 | 17.0 |
| Absolute minimum temperature (°C) | 10.1 | 12.7 | 16.0 | 19.6 | 21.2 | 22.4 | 22.9 | 22.2 | 22.3 | 20.7 | 14.6 | 10.6 |
| 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) | 10.1 | 10.0 | 9.6 | 10.5 | 10.3 | 9.2 | 9.4 | 6.9 | 8.6 | 9.4 | 9.8 | 9.7 |
| Precipitation (mm) | 0 | 27 | 20 | 46 | 182 | 362 | 363 | 379 | 354 | 231 | 64 | 27 |
| Sunny days | 29 | 20 | 25 | 24 | 9 | 0 | 1 | 1 | 1 | 2 | 17 | 16 |
| Rainy days | 2 | 8 | 6 | 6 | 22 | 30 | 30 | 30 | 29 | 29 | 13 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban Son is at