Average annual temperature is 25.5 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: 9.9 °C
Number of sunny days: 139 days
Number of rainy days: 226 days
Look at detailed online map of Ban Nam-Ouan
* Weather data for Ban Nam-Ouan 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) | 29.9 | 32.4 | 35.2 | 38.9 | 39.0 | 37.5 | 36.1 | 35.0 | 35.3 | 32.8 | 32.3 | 32.1 |
| Average daytime temperature (°C) | 27.3 | 30.3 | 32.5 | 36.6 | 35.0 | 32.3 | 32.9 | 30.8 | 31.3 | 30.7 | 30.0 | 29.5 |
| Average temperature (°C) | 20.0 | 22.8 | 25.0 | 28.5 | 28.7 | 27.3 | 27.6 | 26.5 | 26.5 | 25.7 | 23.8 | 22.8 |
| Average night temperature (°C) | 13.0 | 15.8 | 18.5 | 21.7 | 23.7 | 24.0 | 23.9 | 23.6 | 23.3 | 22.0 | 18.7 | 17.2 |
| Absolute minimum temperature (°C) | 9.9 | 11.8 | 14.7 | 19.2 | 22.2 | 23.1 | 22.6 | 22.3 | 22.7 | 19.7 | 15.0 | 11.2 |
| 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 | 11.0 |
| 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) | 10.0 | 10.5 | 10.2 | 10.9 | 10.8 | 9.0 | 9.6 | 6.4 | 9.0 | 9.6 | 9.7 | 10.0 |
| Precipitation (mm) | 1 | 14 | 19 | 57 | 163 | 276 | 208 | 248 | 287 | 168 | 30 | 9 |
| Sunny days | 28 | 22 | 20 | 21 | 9 | 0 | 1 | 0 | 0 | 3 | 17 | 18 |
| Rainy days | 3 | 6 | 11 | 9 | 22 | 30 | 30 | 31 | 30 | 28 | 13 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban Nam-Ouan is at