Average annual temperature is 9.6 °C
Absolute maximum temperature: 30.6 °C
Absolute minimum temperature: -21.0 °C
Number of sunny days: 181 days
Number of rainy days: 165 days
Number of snow days: 19 days
Look at detailed online map of Geosil
* Weather data for Geosil 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) | 10.3 | 10.4 | 19.7 | 20.1 | 26.2 | 28.9 | 29.6 | 30.6 | 26.6 | 18.6 | 20.5 | 12.0 |
| Average daytime temperature (°C) | -0.5 | 4.2 | 11.8 | 14.0 | 19.1 | 23.4 | 25.6 | 26.5 | 22.6 | 15.5 | 7.5 | 1.2 |
| Average temperature (°C) | -4.7 | -1.1 | 5.6 | 8.6 | 14.4 | 18.8 | 21.9 | 22.5 | 18.4 | 10.4 | 2.7 | -2.7 |
| Average night temperature (°C) | -8.2 | -4.7 | 0.5 | 3.7 | 9.8 | 14.9 | 19.0 | 19.5 | 15.0 | 6.2 | -1.4 | -5.8 |
| Absolute minimum temperature (°C) | -21.0 | -8.6 | -8.4 | -3.2 | 1.6 | 10.4 | 15.8 | 13.5 | 8.6 | 0.4 | -11.9 | -17.9 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 7.3 | 7.8 | 9.3 | 8.6 | 8.9 | 10.0 | 7.6 | 9.2 | 7.6 | 8.6 | 7.6 | 6.2 |
| Precipitation (mm) | 41 | 9 | 26 | 116 | 163 | 189 | 560 | 257 | 191 | 17 | 60 | 95 |
| Sunny days | 18 | 23 | 23 | 14 | 16 | 8 | 5 | 9 | 11 | 18 | 17 | 19 |
| Rainy days | 4 | 1 | 8 | 16 | 15 | 22 | 26 | 22 | 19 | 13 | 12 | 7 |
| Snow days | 9 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
The largest precipitation sum in Geosil is at