Average annual temperature is 12.9 °C
Absolute maximum temperature: 30.5 °C
Absolute minimum temperature: -12.7 °C
Number of sunny days: 195 days
Number of rainy days: 156 days
Number of snow days: 14 days
Look at detailed online map of Heukseok
* Weather data for Heukseok 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) | 8.2 | 6.4 | 12.8 | 20.3 | 23.7 | 25.0 | 29.7 | 30.5 | 28.0 | 22.0 | 21.2 | 14.2 |
| Average daytime temperature (°C) | 1.8 | 3.1 | 8.1 | 13.1 | 17.8 | 21.0 | 25.5 | 27.2 | 24.5 | 19.0 | 11.0 | 5.2 |
| Average temperature (°C) | -0.2 | 1.6 | 6.1 | 10.6 | 15.2 | 19.3 | 24.0 | 25.6 | 23.1 | 17.0 | 8.7 | 3.1 |
| Average night temperature (°C) | -3.1 | -0.6 | 4.0 | 8.8 | 13.7 | 18.0 | 22.8 | 24.2 | 21.4 | 14.3 | 5.8 | 0.5 |
| Absolute minimum temperature (°C) | -12.7 | -3.2 | 0.7 | 6.0 | 9.6 | 14.9 | 19.6 | 22.1 | 18.8 | 11.4 | -2.1 | -8.8 |
| 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) | 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 | 8.6 | 9.4 | 8.1 | 8.7 | 9.6 | 7.9 | 8.9 | 7.7 | 8.1 | 6.9 | 5.2 |
| Precipitation (mm) | 45 | 2 | 15 | 70 | 131 | 124 | 362 | 227 | 161 | 56 | 118 | 109 |
| Sunny days | 18 | 26 | 24 | 17 | 22 | 17 | 9 | 13 | 9 | 17 | 10 | 13 |
| Rainy days | 7 | 2 | 7 | 13 | 9 | 13 | 22 | 18 | 21 | 14 | 19 | 11 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 |
The largest precipitation sum in Heukseok is at