Average annual temperature is 20.3 °C
Absolute maximum temperature: 32.9 °C
Absolute minimum temperature: 4.1 °C
Number of sunny days: 98 days
Number of rainy days: 267 days
Look at detailed online map of Ban Houay Say
* Weather data for Ban Houay Say 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) | 24.7 | 29.5 | 30.6 | 32.9 | 32.5 | 30.0 | 29.6 | 28.9 | 27.8 | 27.3 | 26.8 | 26.8 |
| Average daytime temperature (°C) | 21.5 | 24.5 | 26.8 | 30.0 | 28.2 | 26.3 | 27.2 | 25.4 | 25.2 | 24.9 | 24.3 | 23.7 |
| Average temperature (°C) | 14.9 | 18.0 | 20.3 | 23.9 | 23.1 | 22.2 | 22.6 | 21.6 | 21.2 | 20.1 | 18.5 | 16.9 |
| Average night temperature (°C) | 9.2 | 12.8 | 15.4 | 19.4 | 19.5 | 19.5 | 19.4 | 19.3 | 18.6 | 16.7 | 14.4 | 12.1 |
| Absolute minimum temperature (°C) | 4.1 | 8.4 | 10.9 | 16.9 | 17.5 | 18.7 | 18.1 | 18.2 | 17.5 | 14.2 | 10.5 | 4.1 |
| 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 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 11.0 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 9.8 | 10.3 | 10.5 | 11.4 | 10.8 | 8.2 | 9.9 | 6.4 | 8.0 | 9.5 | 9.9 | 9.8 |
| Precipitation (mm) | 10 | 25 | 31 | 76 | 170 | 232 | 185 | 289 | 324 | 140 | 40 | 31 |
| Sunny days | 26 | 15 | 13 | 7 | 0 | 0 | 0 | 0 | 1 | 6 | 16 | 14 |
| Rainy days | 5 | 13 | 18 | 23 | 31 | 30 | 31 | 31 | 29 | 25 | 14 | 17 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban Houay Say is at