Average annual temperature is 13.9 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -14.0 °C
Number of sunny days: 191 days
Number of rainy days: 163 days
Number of snow days: 11 days
Look at detailed online map of Seosandong
* Weather data for Seosandong 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) | 14.4 | 11.7 | 26.4 | 27.4 | 29.6 | 34.6 | 33.1 | 35.0 | 31.0 | 23.4 | 24.6 | 18.8 |
| Average daytime temperature (°C) | 4.6 | 7.8 | 16.2 | 19.0 | 24.0 | 27.8 | 29.2 | 31.0 | 26.9 | 20.4 | 12.6 | 7.0 |
| Average temperature (°C) | -0.4 | 1.8 | 9.0 | 13.1 | 18.3 | 22.6 | 25.6 | 26.7 | 22.8 | 15.0 | 8.0 | 3.0 |
| Average night temperature (°C) | -4.9 | -2.7 | 3.0 | 7.8 | 13.7 | 18.7 | 22.9 | 23.4 | 19.6 | 10.3 | 3.4 | -0.6 |
| Absolute minimum temperature (°C) | -14.0 | -5.5 | -4.7 | 1.1 | 6.1 | 15.5 | 20.5 | 18.8 | 14.6 | 5.6 | -4.7 | -11.0 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.4 | 8.9 | 7.6 | 8.1 | 9.6 | 6.8 | 9.0 | 7.1 | 8.2 | 6.8 | 5.3 |
| Precipitation (mm) | 32 | 5 | 23 | 70 | 155 | 236 | 625 | 294 | 256 | 14 | 96 | 127 |
| Sunny days | 20 | 23 | 23 | 17 | 15 | 13 | 4 | 6 | 10 | 24 | 18 | 18 |
| Rainy days | 8 | 4 | 8 | 13 | 16 | 17 | 27 | 25 | 20 | 7 | 11 | 7 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
The largest precipitation sum in Seosandong is at