Average annual temperature is 12.0 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -19.4 °C
Number of sunny days: 182 days
Number of rainy days: 170 days
Number of snow days: 13 days
Look at detailed online map of Seondeul
* Weather data for Seondeul 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 | 10.1 | 22.3 | 25.1 | 27.8 | 33.7 | 32.3 | 33.2 | 30.5 | 21.9 | 22.2 | 15.0 |
| Average daytime temperature (°C) | 1.2 | 5.7 | 14.0 | 17.2 | 22.7 | 26.4 | 28.5 | 29.0 | 25.9 | 18.6 | 8.8 | 3.4 |
| Average temperature (°C) | -3.6 | 0.2 | 7.3 | 11.5 | 17.2 | 21.5 | 25.0 | 25.3 | 21.7 | 13.5 | 4.2 | -0.5 |
| Average night temperature (°C) | -8.0 | -3.6 | 1.9 | 6.8 | 12.1 | 17.3 | 22.1 | 22.0 | 18.1 | 9.2 | 0.1 | -4.3 |
| Absolute minimum temperature (°C) | -19.4 | -7.2 | -4.5 | 0.0 | 6.0 | 13.1 | 18.8 | 17.3 | 11.9 | 2.9 | -8.4 | -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 | 14.7 | 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) | 7.1 | 8.4 | 9.0 | 7.2 | 9.4 | 9.3 | 7.6 | 8.2 | 7.7 | 8.3 | 6.9 | 6.2 |
| Precipitation (mm) | 53 | 2 | 18 | 125 | 155 | 240 | 397 | 329 | 131 | 20 | 91 | 75 |
| Sunny days | 19 | 26 | 24 | 14 | 19 | 7 | 4 | 7 | 9 | 19 | 13 | 21 |
| Rainy days | 3 | 2 | 7 | 16 | 12 | 23 | 27 | 24 | 21 | 12 | 15 | 8 |
| Snow days | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The largest precipitation sum in Seondeul is at