Average annual temperature is 23.5 °C
Absolute maximum temperature: 38.6 °C
Absolute minimum temperature: 5.9 °C
Number of sunny days: 138 days
Number of rainy days: 227 days
Look at detailed online map of Sam Phou
* Weather data for Sam Phou 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) | 29.0 | 31.8 | 35.2 | 37.6 | 37.8 | 38.6 | 35.9 | 32.4 | 32.8 | 31.1 | 30.2 | 29.5 |
| Average daytime temperature (°C) | 25.0 | 28.3 | 30.2 | 34.0 | 33.5 | 30.7 | 31.2 | 28.4 | 29.5 | 28.9 | 27.6 | 25.9 |
| Average temperature (°C) | 17.4 | 20.6 | 22.9 | 26.2 | 27.4 | 26.0 | 26.4 | 24.8 | 25.2 | 24.0 | 21.5 | 19.6 |
| Average night temperature (°C) | 10.4 | 14.0 | 16.7 | 20.4 | 22.6 | 22.7 | 23.0 | 22.3 | 21.9 | 19.8 | 16.6 | 14.3 |
| Absolute minimum temperature (°C) | 5.9 | 11.0 | 12.4 | 17.2 | 20.5 | 21.8 | 21.8 | 21.4 | 21.0 | 17.0 | 12.3 | 7.7 |
| 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 | 11.2 | 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) | 9.6 | 10.2 | 9.0 | 9.9 | 10.8 | 8.3 | 9.6 | 6.7 | 8.9 | 9.9 | 9.7 | 9.4 |
| Precipitation (mm) | 2 | 44 | 39 | 49 | 110 | 546 | 295 | 700 | 289 | 76 | 53 | 24 |
| Sunny days | 27 | 17 | 15 | 21 | 12 | 0 | 0 | 1 | 4 | 13 | 15 | 13 |
| Rainy days | 4 | 11 | 16 | 9 | 19 | 30 | 31 | 30 | 26 | 18 | 15 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sam Phou is at