Average annual temperature is 18.7 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: 2.6 °C
Number of sunny days: 39 days
Number of rainy days: 326 days
Look at detailed online map of Ban Nam-Oulon
* Weather data for Ban Nam-Oulon 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) | 23.3 | 27.6 | 29.5 | 29.8 | 31.7 | 30.1 | 28.8 | 29.1 | 28.0 | 26.2 | 24.7 | 25.9 |
| Average daytime temperature (°C) | 13.4 | 18.6 | 21.3 | 25.9 | 26.8 | 25.9 | 26.4 | 24.6 | 23.7 | 21.1 | 19.1 | 16.2 |
| Average temperature (°C) | 10.7 | 15.2 | 17.4 | 22.0 | 22.8 | 22.3 | 22.4 | 21.5 | 20.9 | 18.9 | 16.5 | 13.5 |
| Average night temperature (°C) | 8.0 | 12.4 | 14.4 | 19.0 | 20.1 | 19.9 | 19.9 | 19.5 | 18.8 | 17.1 | 14.5 | 11.1 |
| Absolute minimum temperature (°C) | 3.8 | 6.5 | 9.4 | 13.3 | 15.1 | 19.0 | 18.9 | 18.7 | 17.8 | 14.8 | 10.0 | 2.6 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 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) | 5.3 | 7.3 | 9.5 | 10.0 | 10.2 | 8.1 | 9.3 | 6.8 | 7.0 | 5.7 | 6.9 | 5.9 |
| Precipitation (mm) | 172 | 128 | 92 | 121 | 136 | 107 | 181 | 234 | 398 | 369 | 292 | 122 |
| Sunny days | 6 | 3 | 6 | 3 | 3 | 0 | 0 | 0 | 1 | 3 | 7 | 7 |
| Rainy days | 25 | 25 | 25 | 27 | 28 | 30 | 31 | 31 | 29 | 28 | 23 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Ban Nam-Oulon during the most sunny months:
The largest precipitation sum in Ban Nam-Oulon is at