Average annual temperature is 20.6 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: 3.3 °C
Number of sunny days: 115 days
Number of rainy days: 250 days
Look at detailed online map of Ban San-Ông
* Weather data for Ban San-Ông 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) | 25.4 | 29.4 | 31.5 | 33.3 | 33.5 | 33.1 | 31.4 | 29.9 | 28.8 | 29.2 | 28.0 | 27.5 |
| Average daytime temperature (°C) | 21.0 | 25.2 | 26.9 | 30.6 | 30.2 | 28.3 | 29.1 | 26.8 | 26.4 | 26.0 | 24.3 | 22.9 |
| Average temperature (°C) | 14.0 | 17.8 | 19.9 | 23.7 | 24.1 | 23.3 | 23.9 | 22.6 | 22.2 | 20.9 | 18.6 | 16.7 |
| Average night temperature (°C) | 8.0 | 12.1 | 14.6 | 18.6 | 19.7 | 20.0 | 20.0 | 19.8 | 19.2 | 16.9 | 14.3 | 12.0 |
| Absolute minimum temperature (°C) | 3.3 | 7.2 | 10.6 | 16.1 | 16.9 | 19.1 | 18.5 | 19.0 | 17.9 | 13.7 | 9.4 | 3.4 |
| 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) | 11.1 | 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) | 8.6 | 9.3 | 9.0 | 10.5 | 10.1 | 8.2 | 10.0 | 6.2 | 8.3 | 9.0 | 8.8 | 8.2 |
| Precipitation (mm) | 4 | 13 | 32 | 59 | 84 | 262 | 138 | 273 | 226 | 49 | 20 | 8 |
| Sunny days | 23 | 19 | 11 | 14 | 6 | 0 | 0 | 1 | 1 | 8 | 16 | 16 |
| Rainy days | 8 | 9 | 20 | 16 | 25 | 30 | 31 | 30 | 29 | 23 | 14 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban San-Ông is at