Average annual temperature is 20.6 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: 3.4 °C
Number of sunny days: 135 days
Number of rainy days: 230 days
Look at detailed online map of Ban Houaysan
* Weather data for Ban Houaysan 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) | 25.3 | 28.0 | 31.1 | 34.2 | 33.3 | 33.8 | 31.4 | 29.0 | 29.3 | 28.1 | 28.6 | 26.9 |
| Average daytime temperature (°C) | 21.8 | 25.1 | 27.0 | 30.7 | 30.1 | 27.3 | 28.0 | 25.3 | 26.4 | 26.2 | 25.3 | 23.1 |
| Average temperature (°C) | 14.7 | 17.9 | 20.2 | 24.3 | 24.4 | 22.8 | 23.3 | 21.7 | 21.7 | 20.5 | 18.5 | 16.6 |
| Average night temperature (°C) | 8.3 | 11.5 | 14.3 | 18.5 | 19.9 | 19.5 | 19.7 | 19.0 | 18.2 | 16.0 | 13.3 | 11.0 |
| Absolute minimum temperature (°C) | 3.4 | 7.2 | 10.7 | 16.1 | 17.5 | 18.2 | 18.6 | 15.5 | 16.1 | 12.9 | 8.5 | 4.0 |
| 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 | 13.2 | 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 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.6 | 10.4 | 9.6 | 10.8 | 10.9 | 8.4 | 10.1 | 6.4 | 9.0 | 10.1 | 9.9 | 9.6 |
| Precipitation (mm) | 1 | 27 | 37 | 53 | 72 | 332 | 325 | 374 | 286 | 90 | 35 | 12 |
| Sunny days | 27 | 18 | 14 | 14 | 8 | 0 | 1 | 1 | 1 | 12 | 17 | 22 |
| Rainy days | 4 | 10 | 17 | 16 | 23 | 30 | 30 | 30 | 29 | 19 | 13 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban Houaysan is at