Average annual temperature is 20.6 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: 5.2 °C
Number of sunny days: 111 days
Number of rainy days: 254 days
Look at detailed online map of Cha Long Sen Sai
* Weather data for Cha Long Sen Sai 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) | 23.5 | 26.5 | 30.4 | 34.2 | 33.4 | 33.5 | 31.7 | 29.6 | 29.3 | 27.5 | 26.9 | 25.5 |
| Average daytime temperature (°C) | 19.8 | 23.7 | 26.1 | 30.9 | 29.5 | 27.6 | 28.4 | 26.1 | 26.7 | 25.2 | 22.9 | 21.6 |
| Average temperature (°C) | 14.0 | 17.4 | 19.9 | 23.8 | 23.9 | 23.1 | 23.7 | 22.3 | 22.5 | 21.1 | 18.4 | 16.6 |
| Average night temperature (°C) | 8.1 | 11.7 | 14.4 | 18.1 | 19.6 | 20.0 | 20.3 | 19.7 | 19.1 | 17.5 | 14.4 | 12.2 |
| Absolute minimum temperature (°C) | 5.2 | 9.7 | 10.9 | 14.7 | 17.4 | 19.1 | 19.2 | 18.2 | 17.9 | 16.1 | 11.2 | 5.8 |
| 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 | 11.4 | 12.0 | 12.6 | 13.2 | 13.4 | 13.3 | 12.9 | 12.3 | 11.7 | 11.1 | 10.8 |
| 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) | 8.9 | 9.3 | 9.1 | 10.3 | 10.0 | 7.6 | 9.0 | 5.6 | 9.4 | 9.0 | 8.7 | 8.4 |
| Precipitation (mm) | 1 | 28 | 39 | 48 | 163 | 287 | 190 | 455 | 172 | 132 | 53 | 57 |
| Sunny days | 25 | 16 | 9 | 19 | 8 | 1 | 0 | 0 | 3 | 7 | 15 | 8 |
| Rainy days | 6 | 12 | 22 | 11 | 23 | 29 | 31 | 31 | 27 | 24 | 15 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Cha Long Sen Sai is at