Average annual temperature is 12.2 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -18.1 °C
Number of sunny days: 187 days
Number of rainy days: 170 days
Number of snow days: 8 days
Look at detailed online map of Ganghwa-eup
* Weather data for Ganghwa-eup South Korea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 11.0 | 8.6 | 21.3 | 24.8 | 27.9 | 33.0 | 32.4 | 33.7 | 30.8 | 22.7 | 22.6 | 15.4 |
| Average daytime temperature (°C) | 1.2 | 5.4 | 12.9 | 17.0 | 22.2 | 25.8 | 28.9 | 29.4 | 26.5 | 19.6 | 9.7 | 4.0 |
| Average temperature (°C) | -3.3 | 0.2 | 6.8 | 12.0 | 17.4 | 21.8 | 25.2 | 25.6 | 22.1 | 14.0 | 4.7 | -0.5 |
| Average night temperature (°C) | -8.1 | -3.8 | 1.8 | 8.0 | 13.5 | 18.6 | 22.3 | 22.2 | 18.3 | 9.0 | 0.3 | -4.6 |
| Absolute minimum temperature (°C) | -18.1 | -6.7 | -3.4 | 3.2 | 6.7 | 15.2 | 18.5 | 16.6 | 12.0 | 2.7 | -7.1 | -14.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.9 | 8.5 | 9.0 | 7.4 | 9.1 | 9.2 | 7.9 | 8.4 | 7.9 | 8.2 | 6.9 | 6.4 |
| Precipitation (mm) | 35 | 4 | 29 | 129 | 171 | 157 | 310 | 325 | 94 | 35 | 93 | 69 |
| Sunny days | 22 | 26 | 24 | 13 | 20 | 7 | 5 | 7 | 10 | 19 | 13 | 21 |
| Rainy days | 5 | 2 | 7 | 17 | 11 | 23 | 26 | 24 | 20 | 12 | 15 | 8 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The largest precipitation sum in Ganghwa-eup is at