Average annual temperature is 18.2 °C
Absolute maximum temperature: 29.6 °C
Absolute minimum temperature: 4.2 °C
Number of sunny days: 76 days
Number of rainy days: 289 days
Look at detailed online map of Phahao
* Weather data for Phahao 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) | 22.3 | 25.8 | 27.4 | 28.5 | 29.6 | 26.9 | 26.0 | 26.2 | 26.0 | 24.7 | 24.1 | 24.0 |
| Average daytime temperature (°C) | 18.8 | 21.4 | 23.2 | 25.9 | 24.9 | 23.3 | 23.9 | 22.4 | 22.4 | 22.4 | 21.9 | 20.5 |
| Average temperature (°C) | 13.3 | 16.1 | 18.2 | 21.1 | 20.7 | 19.8 | 20.1 | 19.3 | 19.1 | 18.4 | 17.1 | 15.6 |
| Average night temperature (°C) | 8.7 | 11.7 | 14.2 | 17.4 | 17.6 | 17.3 | 17.3 | 17.1 | 16.8 | 15.3 | 13.6 | 11.7 |
| Absolute minimum temperature (°C) | 4.2 | 7.0 | 9.8 | 14.9 | 14.7 | 15.9 | 16.2 | 15.9 | 14.9 | 13.2 | 9.5 | 4.7 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.0 | 13.3 | 13.1 | 12.8 | 12.2 | 11.7 | 11.2 | 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 | 10.0 |
| Sunshine mean duration (h) | 9.6 | 10.2 | 10.4 | 11.1 | 9.9 | 7.0 | 9.2 | 6.1 | 7.9 | 9.5 | 10.2 | 9.6 |
| Precipitation (mm) | 11 | 54 | 80 | 129 | 236 | 251 | 213 | 362 | 266 | 171 | 61 | 56 |
| Sunny days | 21 | 10 | 7 | 5 | 0 | 0 | 0 | 1 | 0 | 4 | 16 | 12 |
| Rainy days | 10 | 18 | 24 | 25 | 31 | 30 | 31 | 30 | 30 | 27 | 14 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Phahao is at