Average annual temperature is 12.1 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -19.0 °C
Number of sunny days: 177 days
Number of rainy days: 177 days
Number of snow days: 11 days
Look at detailed online map of Gyean
* Weather data for Gyean 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) | 11.4 | 10.3 | 23.0 | 25.5 | 29.0 | 34.2 | 33.5 | 33.7 | 31.1 | 22.3 | 22.8 | 15.0 |
| Average daytime temperature (°C) | 1.4 | 6.0 | 14.5 | 17.6 | 23.5 | 27.1 | 29.4 | 29.5 | 26.6 | 19.1 | 9.0 | 3.5 |
| Average temperature (°C) | -3.6 | 0.0 | 7.2 | 11.6 | 17.4 | 21.9 | 25.5 | 25.4 | 21.8 | 13.4 | 4.2 | -0.9 |
| Average night temperature (°C) | -8.2 | -4.1 | 1.0 | 6.2 | 11.9 | 17.2 | 22.1 | 21.8 | 17.8 | 8.5 | 0.0 | -4.8 |
| Absolute minimum temperature (°C) | -19.0 | -7.3 | -4.7 | -1.6 | 3.7 | 12.4 | 18.0 | 16.4 | 10.5 | 2.6 | -8.1 | -15.9 |
| 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 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 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) | 7.1 | 8.4 | 9.4 | 7.1 | 9.3 | 9.6 | 7.9 | 7.8 | 7.7 | 8.2 | 6.5 | 6.0 |
| Precipitation (mm) | 45 | 2 | 15 | 108 | 151 | 194 | 294 | 319 | 124 | 33 | 92 | 72 |
| Sunny days | 21 | 25 | 23 | 11 | 19 | 7 | 5 | 4 | 9 | 19 | 15 | 19 |
| Rainy days | 4 | 3 | 8 | 19 | 12 | 23 | 26 | 27 | 21 | 12 | 14 | 8 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
The largest precipitation sum in Gyean is at