Average annual temperature is 25.2 °C
Absolute maximum temperature: 38.8 °C
Absolute minimum temperature: 9.9 °C
Number of sunny days: 124 days
Number of rainy days: 241 days
Look at detailed online map of Ban Nammai
* Weather data for Ban Nammai 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) | 30.8 | 32.3 | 36.6 | 38.6 | 38.8 | 35.8 | 34.9 | 33.6 | 33.3 | 31.7 | 31.4 | 31.7 |
| Average daytime temperature (°C) | 25.9 | 28.5 | 31.8 | 35.5 | 33.4 | 31.4 | 31.5 | 29.7 | 29.5 | 29.2 | 28.8 | 28.5 |
| Average temperature (°C) | 20.6 | 23.3 | 25.8 | 29.1 | 27.9 | 26.5 | 26.6 | 25.8 | 25.4 | 24.9 | 23.9 | 23.1 |
| Average night temperature (°C) | 14.8 | 17.9 | 20.5 | 23.9 | 23.9 | 23.4 | 23.3 | 23.1 | 22.8 | 21.9 | 19.5 | 18.3 |
| Absolute minimum temperature (°C) | 9.9 | 14.0 | 16.7 | 21.3 | 21.7 | 22.6 | 22.6 | 22.2 | 21.9 | 20.2 | 16.2 | 11.3 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.1 | 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) | 9.8 | 10.1 | 10.4 | 10.9 | 10.0 | 8.0 | 9.0 | 5.6 | 6.9 | 9.2 | 9.9 | 9.8 |
| Precipitation (mm) | 3 | 9 | 9 | 73 | 178 | 364 | 287 | 374 | 356 | 306 | 50 | 33 |
| Sunny days | 27 | 22 | 22 | 14 | 3 | 0 | 0 | 1 | 0 | 1 | 14 | 20 |
| Rainy days | 4 | 6 | 9 | 16 | 28 | 30 | 31 | 30 | 30 | 30 | 16 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban Nammai is at