Average annual temperature is 21.8 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: 4.7 °C
Number of sunny days: 106 days
Number of rainy days: 259 days
Look at detailed online map of Nam O
* Weather data for Nam O 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) | 26.7 | 31.2 | 33.5 | 35.5 | 35.8 | 33.3 | 32.3 | 30.4 | 29.5 | 29.3 | 28.4 | 29.9 |
| Average daytime temperature (°C) | 22.1 | 26.7 | 28.9 | 32.0 | 31.4 | 29.1 | 30.2 | 27.7 | 27.3 | 26.5 | 25.6 | 24.8 |
| Average temperature (°C) | 15.0 | 19.0 | 21.2 | 24.7 | 25.1 | 24.3 | 25.0 | 23.7 | 23.3 | 21.9 | 19.9 | 18.3 |
| Average night temperature (°C) | 9.2 | 13.3 | 15.5 | 19.5 | 20.8 | 20.9 | 21.2 | 20.9 | 20.3 | 18.3 | 15.7 | 13.5 |
| Absolute minimum temperature (°C) | 4.7 | 7.7 | 11.4 | 17.6 | 18.3 | 19.9 | 20.1 | 19.2 | 18.5 | 15.4 | 11.4 | 5.1 |
| 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) | 8.1 | 9.4 | 9.0 | 10.4 | 10.3 | 7.7 | 10.4 | 6.3 | 7.8 | 8.9 | 8.8 | 8.5 |
| Precipitation (mm) | 3 | 15 | 25 | 45 | 139 | 349 | 160 | 361 | 204 | 100 | 25 | 8 |
| Sunny days | 23 | 15 | 16 | 6 | 2 | 1 | 0 | 1 | 2 | 5 | 12 | 23 |
| Rainy days | 8 | 13 | 15 | 24 | 29 | 29 | 31 | 30 | 28 | 26 | 18 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nam O is at