Average annual temperature is 12.2 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: -15.0 °C
Number of sunny days: 197 days
Number of rainy days: 163 days
Number of snow days: 5 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) | 12.8 | 13.4 | 22.0 | 26.4 | 29.9 | 32.9 | 31.9 | 33.2 | 28.8 | 21.7 | 23.2 | 15.6 |
| Average daytime temperature (°C) | 3.7 | 7.5 | 15.4 | 17.4 | 21.7 | 27.1 | 27.7 | 29.1 | 25.2 | 18.9 | 11.3 | 5.8 |
| Average temperature (°C) | -1.2 | 1.5 | 8.2 | 11.1 | 16.3 | 21.4 | 23.8 | 24.7 | 20.8 | 12.5 | 5.9 | 1.0 |
| Average night temperature (°C) | -5.0 | -2.8 | 2.1 | 5.3 | 11.2 | 16.4 | 20.8 | 21.2 | 17.1 | 7.1 | 1.3 | -2.7 |
| Absolute minimum temperature (°C) | -15.0 | -8.8 | -5.2 | -1.0 | 2.6 | 12.8 | 16.7 | 16.3 | 11.9 | 1.4 | -6.8 | -11.1 |
| 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) | 7.2 | 7.5 | 8.8 | 7.9 | 7.8 | 9.4 | 7.2 | 9.5 | 7.5 | 8.9 | 7.6 | 6.5 |
| Precipitation (mm) | 39 | 23 | 35 | 69 | 119 | 197 | 393 | 288 | 196 | 6 | 71 | 90 |
| Sunny days | 24 | 20 | 23 | 15 | 17 | 14 | 5 | 8 | 9 | 24 | 20 | 18 |
| Rainy days | 5 | 8 | 8 | 15 | 14 | 16 | 26 | 23 | 21 | 7 | 10 | 10 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Sŏp’yŏn is at