Average annual temperature is 21.3 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: 6.2 °C
Number of sunny days: 108 days
Number of rainy days: 257 days
Look at detailed online map of Sen Lassa
* Weather data for Sen Lassa 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) | 25.8 | 28.4 | 30.9 | 33.2 | 33.3 | 33.1 | 31.9 | 29.9 | 29.7 | 28.2 | 26.6 | 26.8 |
| Average daytime temperature (°C) | 21.6 | 25.1 | 27.0 | 30.6 | 30.0 | 27.5 | 28.4 | 25.9 | 26.8 | 25.5 | 23.9 | 22.8 |
| Average temperature (°C) | 15.7 | 18.8 | 20.8 | 24.1 | 24.5 | 23.2 | 23.7 | 22.4 | 22.6 | 21.7 | 19.5 | 17.9 |
| Average night temperature (°C) | 10.2 | 13.5 | 15.7 | 19.2 | 20.2 | 20.2 | 20.2 | 20.0 | 19.6 | 18.6 | 16.0 | 13.7 |
| Absolute minimum temperature (°C) | 6.2 | 10.1 | 12.8 | 17.1 | 17.8 | 19.4 | 19.2 | 19.1 | 18.4 | 17.3 | 12.2 | 6.9 |
| 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) | 9.8 | 10.4 | 9.6 | 10.4 | 10.6 | 8.3 | 9.4 | 6.3 | 9.3 | 10.0 | 9.7 | 9.7 |
| Precipitation (mm) | 3 | 45 | 118 | 93 | 163 | 486 | 338 | 531 | 295 | 148 | 53 | 47 |
| Sunny days | 26 | 14 | 11 | 15 | 8 | 0 | 0 | 0 | 1 | 7 | 13 | 13 |
| Rainy days | 5 | 14 | 20 | 15 | 23 | 30 | 31 | 31 | 29 | 24 | 17 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sen Lassa is at