Average annual temperature is 12.9 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -15.9 °C
Number of sunny days: 187 days
Number of rainy days: 165 days
Number of snow days: 13 days
Look at detailed online map of Haep’yŏng
* Weather data for Haep’yŏng 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) | 12.0 | 10.1 | 22.4 | 25.5 | 28.8 | 32.2 | 32.4 | 34.2 | 30.2 | 22.4 | 22.7 | 16.0 |
| Average daytime temperature (°C) | 2.0 | 5.0 | 13.0 | 17.4 | 22.5 | 25.1 | 28.3 | 29.2 | 25.8 | 19.0 | 10.3 | 5.0 |
| Average temperature (°C) | -1.8 | 0.9 | 7.4 | 12.3 | 17.5 | 21.2 | 25.1 | 25.9 | 22.5 | 14.8 | 6.5 | 1.3 |
| Average night temperature (°C) | -5.8 | -2.8 | 2.9 | 8.5 | 13.5 | 18.3 | 22.8 | 23.1 | 19.5 | 10.8 | 2.4 | -2.2 |
| Absolute minimum temperature (°C) | -15.9 | -5.9 | -2.7 | 2.6 | 6.2 | 15.1 | 20.5 | 18.8 | 14.0 | 5.7 | -5.9 | -12.7 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 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) | 7.2 | 8.5 | 9.6 | 8.0 | 8.8 | 9.5 | 7.8 | 8.8 | 7.6 | 8.1 | 7.0 | 5.8 |
| Precipitation (mm) | 31 | 1 | 14 | 88 | 142 | 162 | 386 | 246 | 190 | 32 | 130 | 92 |
| Sunny days | 18 | 25 | 25 | 17 | 20 | 13 | 6 | 8 | 8 | 17 | 15 | 15 |
| Rainy days | 7 | 3 | 6 | 13 | 11 | 17 | 25 | 23 | 22 | 14 | 15 | 9 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 |
The largest precipitation sum in Haep’yŏng is at