Average annual temperature is 24.4 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 6.7 °C
Number of sunny days: 107 days
Number of rainy days: 258 days
Look at detailed online map of Cổ Giản
* Weather data for Cổ Giản 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) | 29.9 | 30.1 | 34.1 | 33.2 | 37.6 | 35.9 | 36.4 | 34.1 | 34.4 | 32.7 | 30.6 | 28.2 |
| Average daytime temperature (°C) | 20.9 | 23.4 | 26.4 | 28.6 | 31.9 | 32.3 | 33.3 | 31.3 | 30.5 | 29.6 | 27.2 | 22.4 |
| Average temperature (°C) | 16.6 | 19.7 | 22.0 | 25.0 | 27.9 | 29.0 | 29.6 | 28.1 | 27.3 | 25.8 | 22.8 | 18.6 |
| Average night temperature (°C) | 12.4 | 16.7 | 18.5 | 22.4 | 24.9 | 26.5 | 26.7 | 25.4 | 24.8 | 22.7 | 19.2 | 14.9 |
| Absolute minimum temperature (°C) | 6.7 | 10.6 | 15.0 | 18.2 | 19.6 | 24.0 | 24.1 | 24.3 | 23.6 | 19.5 | 13.4 | 6.8 |
| 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 | 11.5 | 12.0 | 12.6 | 13.1 | 13.4 | 13.3 | 12.8 | 12.3 | 11.7 | 11.1 | 10.9 |
| 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) | 5.8 | 3.7 | 5.2 | 5.7 | 9.3 | 7.4 | 10.8 | 8.0 | 6.9 | 8.3 | 8.1 | 5.3 |
| Precipitation (mm) | 21 | 43 | 48 | 56 | 143 | 394 | 209 | 378 | 335 | 67 | 37 | 18 |
| Sunny days | 19 | 10 | 12 | 5 | 12 | 2 | 2 | 3 | 1 | 13 | 13 | 15 |
| Rainy days | 12 | 18 | 19 | 25 | 19 | 28 | 29 | 28 | 29 | 18 | 17 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Cổ Giản during the most sunny months:
The largest precipitation sum in Cổ Giản is at