Average annual temperature is 11.9 °C
Absolute maximum temperature: 33.0 °C
Absolute minimum temperature: -18.2 °C
Number of sunny days: 198 days
Number of rainy days: 158 days
Number of snow days: 9 days
Look at detailed online map of Sŏp’yŏn
* Weather data for Sŏp’yŏn 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) | 12.4 | 11.7 | 20.5 | 23.7 | 29.1 | 30.2 | 31.9 | 33.0 | 27.1 | 20.9 | 21.9 | 14.2 |
| Average daytime temperature (°C) | 1.9 | 6.1 | 13.9 | 16.0 | 21.1 | 25.5 | 27.5 | 28.4 | 24.0 | 17.6 | 9.7 | 3.9 |
| Average temperature (°C) | -2.1 | 1.3 | 8.0 | 10.9 | 16.3 | 20.7 | 23.8 | 24.5 | 20.4 | 13.0 | 5.3 | 0.2 |
| Average night temperature (°C) | -5.7 | -2.1 | 3.0 | 6.4 | 11.8 | 16.8 | 21.0 | 21.6 | 17.6 | 9.0 | 1.2 | -2.9 |
| Absolute minimum temperature (°C) | -18.2 | -7.3 | -5.6 | -0.9 | 4.4 | 12.8 | 17.5 | 18.7 | 12.1 | 2.3 | -8.6 | -14.1 |
| 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 | 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) | 7.5 | 7.7 | 9.0 | 8.6 | 8.9 | 9.7 | 7.7 | 9.3 | 7.3 | 8.8 | 7.8 | 6.8 |
| Precipitation (mm) | 26 | 14 | 48 | 79 | 155 | 201 | 351 | 229 | 212 | 14 | 33 | 96 |
| Sunny days | 23 | 19 | 24 | 14 | 21 | 5 | 7 | 8 | 12 | 23 | 19 | 23 |
| Rainy days | 6 | 4 | 7 | 16 | 10 | 25 | 24 | 23 | 18 | 8 | 10 | 7 |
| Snow days | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The largest precipitation sum in Sŏp’yŏn is at