Average annual temperature is 22.3 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: 5.2 °C
Number of sunny days: 134 days
Number of rainy days: 231 days
Look at detailed online map of Ban Lassa
* Weather data for Ban 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) | 28.2 | 30.6 | 34.1 | 36.8 | 37.1 | 37.9 | 35.0 | 31.4 | 31.9 | 30.1 | 29.3 | 28.4 |
| Average daytime temperature (°C) | 24.1 | 27.3 | 29.1 | 32.9 | 32.7 | 29.6 | 30.3 | 27.3 | 28.7 | 27.9 | 26.7 | 24.7 |
| Average temperature (°C) | 16.2 | 19.2 | 21.5 | 24.8 | 26.1 | 24.9 | 25.2 | 23.7 | 24.2 | 22.9 | 20.4 | 18.3 |
| Average night temperature (°C) | 8.9 | 12.0 | 15.2 | 18.6 | 21.2 | 21.7 | 21.8 | 21.2 | 20.8 | 18.5 | 15.2 | 13.0 |
| Absolute minimum temperature (°C) | 5.2 | 9.1 | 11.3 | 15.6 | 19.5 | 20.7 | 20.7 | 20.2 | 19.6 | 15.6 | 11.2 | 6.4 |
| 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 | 13.3 | 12.8 | 12.3 | 11.7 | 11.1 | 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) | 9.3 | 10.1 | 8.9 | 9.7 | 10.6 | 8.0 | 9.6 | 6.4 | 8.9 | 9.9 | 9.5 | 9.3 |
| Precipitation (mm) | 2 | 49 | 58 | 57 | 112 | 598 | 427 | 785 | 258 | 97 | 46 | 38 |
| Sunny days | 27 | 18 | 15 | 19 | 7 | 0 | 0 | 0 | 5 | 13 | 15 | 15 |
| Rainy days | 4 | 10 | 16 | 11 | 24 | 30 | 31 | 31 | 25 | 18 | 15 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban Lassa is at