Average annual temperature is 20.4 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: 1.5 °C
Number of sunny days: 94 days
Number of rainy days: 271 days
Look at detailed online map of Sèn Nam
* Weather data for Sèn Nam 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) | 26.5 | 31.0 | 32.6 | 34.9 | 35.2 | 34.7 | 33.3 | 31.3 | 29.3 | 29.6 | 29.6 | 29.1 |
| Average daytime temperature (°C) | 19.1 | 24.0 | 25.7 | 30.4 | 30.8 | 29.7 | 30.5 | 28.0 | 26.4 | 25.6 | 23.6 | 21.4 |
| Average temperature (°C) | 12.6 | 17.1 | 18.9 | 23.3 | 24.5 | 24.1 | 24.7 | 23.3 | 22.2 | 20.6 | 18.0 | 15.7 |
| Average night temperature (°C) | 6.7 | 11.5 | 13.7 | 18.3 | 20.1 | 20.5 | 20.3 | 19.9 | 18.9 | 16.5 | 13.7 | 11.1 |
| Absolute minimum temperature (°C) | 1.5 | 6.0 | 8.1 | 15.2 | 16.7 | 19.1 | 18.8 | 16.0 | 16.7 | 12.5 | 8.0 | 3.3 |
| 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) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 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) | 7.8 | 8.2 | 8.1 | 9.3 | 9.5 | 7.8 | 10.1 | 7.0 | 7.6 | 8.7 | 8.4 | 7.4 |
| Precipitation (mm) | 14 | 31 | 80 | 68 | 100 | 276 | 190 | 268 | 245 | 59 | 39 | 10 |
| Sunny days | 16 | 13 | 6 | 10 | 8 | 0 | 2 | 2 | 1 | 8 | 10 | 18 |
| Rainy days | 15 | 15 | 25 | 20 | 23 | 30 | 29 | 29 | 29 | 23 | 20 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sèn Nam is at