Average annual temperature is 21.4 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: 5.7 °C
Number of sunny days: 115 days
Number of rainy days: 250 days
Look at detailed online map of Kouei San
* Weather data for Kouei 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) | 24.4 | 28.1 | 30.6 | 36.2 | 35.3 | 34.5 | 33.1 | 29.4 | 31.3 | 29.3 | 28.9 | 27.4 |
| Average daytime temperature (°C) | 18.8 | 23.3 | 25.5 | 29.9 | 30.6 | 29.1 | 29.2 | 27.2 | 28.3 | 26.7 | 24.6 | 22.0 |
| Average temperature (°C) | 13.7 | 17.6 | 19.6 | 23.6 | 25.1 | 24.6 | 24.9 | 23.9 | 24.2 | 22.6 | 19.5 | 16.8 |
| Average night temperature (°C) | 8.7 | 12.6 | 14.8 | 18.4 | 20.5 | 21.4 | 21.3 | 21.3 | 20.6 | 18.6 | 14.7 | 12.2 |
| Absolute minimum temperature (°C) | 5.7 | 10.4 | 10.9 | 16.1 | 18.3 | 20.2 | 19.5 | 18.3 | 18.7 | 15.9 | 10.8 | 6.0 |
| 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 | 12.7 | 13.2 | 13.5 | 13.3 | 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) | 8.8 | 9.6 | 10.0 | 10.9 | 10.5 | 8.8 | 10.3 | 7.0 | 9.9 | 9.7 | 9.5 | 8.6 |
| Precipitation (mm) | 5 | 64 | 82 | 96 | 199 | 572 | 469 | 661 | 157 | 53 | 40 | 37 |
| Sunny days | 23 | 13 | 11 | 11 | 10 | 0 | 1 | 0 | 1 | 11 | 19 | 15 |
| Rainy days | 8 | 15 | 20 | 19 | 21 | 30 | 30 | 31 | 29 | 20 | 11 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kouei San is at