Average annual temperature is 5.5 °C
Absolute maximum temperature: 31.8 °C
Absolute minimum temperature: -31.9 °C
Number of sunny days: 168 days
Number of rainy days: 148 days
Number of snow days: 49 days
Look at detailed online map of Hyesan
* Weather data for Hyesan North 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) | 3.9 | 9.0 | 18.7 | 23.4 | 29.2 | 30.6 | 31.8 | 31.6 | 27.1 | 18.5 | 19.2 | 8.1 |
| Average daytime temperature (°C) | -8.2 | -1.1 | 8.8 | 12.6 | 20.4 | 23.6 | 27.8 | 26.3 | 23.1 | 14.2 | 2.3 | -5.3 |
| Average temperature (°C) | -14.7 | -7.6 | 1.2 | 5.8 | 12.7 | 17.1 | 21.4 | 21.2 | 16.1 | 6.6 | -3.1 | -11.1 |
| Average night temperature (°C) | -22.6 | -14.1 | -4.6 | 0.0 | 5.1 | 11.3 | 16.2 | 17.2 | 10.6 | 1.2 | -7.2 | -16.1 |
| Absolute minimum temperature (°C) | -31.9 | -22.3 | -23.4 | -4.1 | -2.1 | 5.8 | 13.2 | 11.5 | 5.0 | -3.1 | -18.1 | -31.8 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| 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 | 8.0 | 9.5 | 8.1 | 11.2 | 10.0 | 10.4 | 7.7 | 10.4 | 8.9 | 6.1 | 6.1 |
| Precipitation (mm) | 21 | 9 | 35 | 81 | 64 | 136 | 179 | 313 | 24 | 23 | 61 | 31 |
| Sunny days | 16 | 16 | 22 | 14 | 16 | 9 | 5 | 5 | 16 | 17 | 14 | 18 |
| Rainy days | 5 | 1 | 2 | 15 | 15 | 21 | 26 | 26 | 14 | 13 | 8 | 2 |
| Snow days | 10 | 11 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 8 | 11 |
The best time to visit Hyesan during the most sunny months:
The largest precipitation sum in Hyesan is at