Average annual temperature is 13.0 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -17.2 °C
Number of sunny days: 191 days
Number of rainy days: 166 days
Number of snow days: 8 days
Look at detailed online map of Seomchon
* Weather data for Seomchon 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) | 12.9 | 12.6 | 23.1 | 24.9 | 31.7 | 33.1 | 33.7 | 34.4 | 29.5 | 21.7 | 23.2 | 15.6 |
| Average daytime temperature (°C) | 3.1 | 7.5 | 16.1 | 18.1 | 23.4 | 27.8 | 29.4 | 30.3 | 25.9 | 19.3 | 11.0 | 5.0 |
| Average temperature (°C) | -1.5 | 1.7 | 9.1 | 12.2 | 17.9 | 22.3 | 25.2 | 26.0 | 21.7 | 13.8 | 6.2 | 0.8 |
| Average night temperature (°C) | -5.5 | -2.6 | 3.1 | 6.5 | 12.6 | 17.8 | 22.2 | 22.7 | 18.2 | 9.1 | 1.6 | -2.5 |
| Absolute minimum temperature (°C) | -17.2 | -7.5 | -4.3 | -0.6 | 3.4 | 12.9 | 18.0 | 18.2 | 12.2 | 3.6 | -7.7 | -12.9 |
| 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) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 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) | 7.4 | 7.8 | 9.2 | 8.4 | 8.8 | 9.7 | 7.6 | 9.3 | 7.4 | 8.8 | 7.8 | 6.5 |
| Precipitation (mm) | 30 | 10 | 39 | 69 | 128 | 250 | 418 | 236 | 225 | 19 | 45 | 79 |
| Sunny days | 23 | 22 | 22 | 16 | 19 | 6 | 3 | 5 | 12 | 22 | 19 | 22 |
| Rainy days | 5 | 4 | 9 | 14 | 12 | 24 | 28 | 26 | 18 | 9 | 10 | 7 |
| Snow days | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The largest precipitation sum in Seomchon is at