Average annual temperature is 14.1 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -11.9 °C
Number of sunny days: 213 days
Number of rainy days: 151 days
Number of snow days: 1 day
Look at detailed online map of Sŏwŏndam
* Weather data for Sŏwŏndam 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) | 16.5 | 16.5 | 25.0 | 29.1 | 34.2 | 35.1 | 35.0 | 37.1 | 30.6 | 24.5 | 27.8 | 19.3 |
| Average daytime temperature (°C) | 7.1 | 10.4 | 18.7 | 20.1 | 24.2 | 29.6 | 30.3 | 31.5 | 27.1 | 21.8 | 14.4 | 8.5 |
| Average temperature (°C) | 0.3 | 3.3 | 10.3 | 13.4 | 18.1 | 23.3 | 25.6 | 26.7 | 22.5 | 14.3 | 7.5 | 2.7 |
| Average night temperature (°C) | -4.6 | -2.2 | 2.8 | 7.1 | 12.7 | 18.2 | 22.3 | 22.8 | 18.6 | 8.1 | 2.0 | -1.8 |
| Absolute minimum temperature (°C) | -11.9 | -6.6 | -5.3 | -0.2 | 5.0 | 14.2 | 18.1 | 18.9 | 12.5 | 3.0 | -5.1 | -8.1 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.8 | 7.5 | 8.9 | 8.2 | 8.1 | 9.4 | 7.4 | 9.5 | 7.7 | 8.9 | 7.8 | 6.9 |
| Precipitation (mm) | 34 | 23 | 40 | 68 | 142 | 163 | 316 | 313 | 172 | 7 | 60 | 79 |
| Sunny days | 26 | 17 | 24 | 17 | 17 | 14 | 5 | 8 | 13 | 26 | 23 | 23 |
| Rainy days | 5 | 11 | 7 | 13 | 14 | 16 | 26 | 23 | 17 | 5 | 7 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Sŏwŏndam is at