Average annual temperature is 13.7 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -15.6 °C
Number of sunny days: 201 days
Number of rainy days: 159 days
Number of snow days: 5 days
Look at detailed online map of Heuksong
* Weather data for Heuksong 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) | 12.7 | 13.2 | 23.9 | 25.2 | 32.8 | 34.4 | 33.6 | 35.3 | 30.6 | 22.5 | 25.0 | 15.4 |
| Average daytime temperature (°C) | 3.6 | 8.1 | 16.9 | 19.3 | 24.5 | 28.9 | 29.7 | 30.8 | 26.7 | 20.0 | 11.6 | 5.2 |
| Average temperature (°C) | -0.9 | 2.5 | 9.9 | 13.1 | 19.0 | 23.4 | 25.6 | 26.5 | 22.4 | 14.4 | 6.5 | 1.3 |
| Average night temperature (°C) | -4.7 | -1.6 | 3.8 | 7.5 | 13.8 | 18.8 | 22.4 | 23.1 | 18.9 | 9.9 | 2.0 | -2.1 |
| Absolute minimum temperature (°C) | -15.6 | -5.5 | -3.4 | 1.6 | 4.6 | 15.3 | 18.3 | 18.1 | 13.5 | 4.4 | -7.2 | -12.8 |
| 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 | 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) | 7.4 | 7.8 | 9.2 | 8.4 | 8.6 | 10.1 | 7.7 | 9.1 | 7.8 | 8.7 | 7.7 | 6.4 |
| Precipitation (mm) | 31 | 10 | 35 | 72 | 143 | 248 | 499 | 363 | 235 | 16 | 40 | 83 |
| Sunny days | 23 | 22 | 22 | 15 | 19 | 9 | 6 | 9 | 14 | 24 | 17 | 21 |
| Rainy days | 6 | 6 | 9 | 15 | 12 | 21 | 25 | 22 | 16 | 7 | 13 | 7 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Heuksong is at