Average annual temperature is 25.4 °C
Absolute maximum temperature: 40.6 °C
Absolute minimum temperature: 8.8 °C
Number of sunny days: 143 days
Number of rainy days: 222 days
Look at detailed online map of Ban Sammun
* Weather data for Ban Sammun 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) | 31.0 | 35.0 | 37.9 | 39.8 | 40.6 | 35.8 | 34.7 | 34.7 | 33.6 | 32.5 | 32.9 | 32.2 |
| Average daytime temperature (°C) | 27.2 | 30.8 | 33.1 | 36.4 | 34.5 | 30.9 | 31.7 | 29.3 | 29.8 | 30.2 | 29.9 | 28.9 |
| Average temperature (°C) | 20.4 | 23.5 | 25.4 | 28.8 | 28.4 | 26.4 | 26.9 | 25.9 | 25.9 | 25.7 | 24.4 | 22.7 |
| Average night temperature (°C) | 13.7 | 16.5 | 19.1 | 22.9 | 23.9 | 23.4 | 23.8 | 23.4 | 23.3 | 22.5 | 19.8 | 17.6 |
| Absolute minimum temperature (°C) | 8.8 | 11.3 | 13.7 | 19.0 | 21.8 | 22.6 | 22.9 | 22.5 | 22.6 | 21.0 | 16.3 | 11.7 |
| 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) | 11.1 | 11.5 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.0 |
| 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) | 9.7 | 10.3 | 9.8 | 10.5 | 10.3 | 7.7 | 8.8 | 5.4 | 7.6 | 9.4 | 10.0 | 9.7 |
| Precipitation (mm) | 1 | 12 | 25 | 48 | 218 | 661 | 461 | 555 | 590 | 274 | 45 | 22 |
| Sunny days | 28 | 21 | 20 | 18 | 8 | 0 | 1 | 1 | 0 | 3 | 19 | 24 |
| Rainy days | 3 | 7 | 11 | 12 | 23 | 30 | 30 | 30 | 30 | 28 | 11 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban Sammun is at