Average annual temperature is 20.9 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: 4.5 °C
Number of sunny days: 113 days
Number of rainy days: 252 days
Look at detailed online map of Sai San
* Weather data for Sai San Vietnam is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 22.8 | 27.4 | 30.2 | 36.1 | 34.5 | 34.2 | 32.8 | 28.4 | 30.1 | 28.5 | 27.2 | 25.5 |
| Average daytime temperature (°C) | 18.5 | 23.1 | 26.0 | 31.2 | 29.9 | 28.3 | 28.4 | 26.3 | 27.9 | 25.6 | 23.0 | 20.7 |
| Average temperature (°C) | 13.0 | 17.4 | 20.1 | 24.7 | 24.7 | 23.9 | 24.2 | 23.0 | 23.4 | 21.4 | 18.2 | 16.0 |
| Average night temperature (°C) | 7.8 | 11.9 | 14.4 | 18.6 | 19.9 | 20.3 | 20.4 | 20.2 | 19.4 | 17.1 | 13.4 | 11.6 |
| Absolute minimum temperature (°C) | 4.5 | 9.0 | 10.5 | 15.6 | 17.2 | 18.3 | 19.3 | 18.2 | 17.9 | 14.4 | 9.3 | 6.2 |
| 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) | 10.9 | 11.4 | 12.0 | 12.7 | 13.2 | 13.5 | 13.4 | 12.9 | 12.3 | 11.6 | 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) | 8.5 | 9.4 | 10.0 | 10.9 | 10.2 | 9.1 | 10.4 | 6.9 | 10.0 | 9.7 | 9.3 | 8.1 |
| Precipitation (mm) | 2 | 38 | 38 | 41 | 177 | 500 | 419 | 586 | 186 | 106 | 80 | 66 |
| Sunny days | 27 | 16 | 12 | 15 | 6 | 0 | 1 | 0 | 0 | 9 | 15 | 12 |
| Rainy days | 4 | 12 | 19 | 15 | 25 | 30 | 30 | 31 | 30 | 22 | 15 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sai San is at