Average annual temperature is 13.4 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -13.9 °C
Number of sunny days: 186 days
Number of rainy days: 175 days
Number of snow days: 4 days
Look at detailed online map of Koryŏng
* Weather data for Koryŏng 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) | 15.8 | 13.7 | 22.7 | 26.4 | 27.0 | 30.6 | 32.9 | 33.8 | 28.5 | 22.8 | 25.6 | 18.5 |
| Average daytime temperature (°C) | 5.6 | 9.1 | 15.8 | 17.8 | 21.4 | 26.0 | 28.0 | 29.6 | 25.8 | 20.3 | 13.5 | 7.8 |
| Average temperature (°C) | 0.0 | 3.1 | 9.5 | 12.4 | 16.7 | 21.2 | 24.3 | 25.8 | 21.9 | 14.5 | 7.8 | 2.8 |
| Average night temperature (°C) | -4.5 | -1.9 | 4.4 | 7.6 | 12.8 | 17.7 | 21.6 | 22.8 | 18.5 | 9.4 | 2.9 | -1.4 |
| Absolute minimum temperature (°C) | -13.9 | -6.3 | -4.5 | 1.0 | 6.2 | 14.5 | 18.4 | 20.8 | 14.3 | 4.3 | -5.7 | -9.6 |
| 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 | 7.7 | 8.8 | 7.9 | 7.6 | 8.8 | 7.0 | 9.5 | 7.4 | 8.6 | 8.1 | 7.0 |
| Precipitation (mm) | 62 | 42 | 72 | 89 | 270 | 194 | 258 | 351 | 307 | 8 | 30 | 77 |
| Sunny days | 26 | 19 | 20 | 17 | 13 | 10 | 3 | 5 | 6 | 23 | 23 | 21 |
| Rainy days | 4 | 9 | 11 | 13 | 18 | 20 | 28 | 26 | 24 | 8 | 7 | 7 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Koryŏng is at