Average annual temperature is 12.8 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: -17.1 °C
Number of sunny days: 182 days
Number of rainy days: 171 days
Number of snow days: 12 days
Look at detailed online map of Ilgwan
* Weather data for Ilgwan 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) | 12.6 | 11.7 | 22.5 | 24.7 | 31.0 | 32.0 | 32.4 | 33.2 | 29.5 | 21.6 | 24.0 | 17.5 |
| Average daytime temperature (°C) | 2.6 | 6.5 | 15.5 | 18.2 | 23.1 | 27.4 | 28.9 | 29.8 | 25.5 | 18.6 | 10.5 | 4.7 |
| Average temperature (°C) | -1.8 | 1.2 | 8.8 | 12.1 | 17.7 | 22.0 | 24.8 | 25.5 | 21.5 | 13.8 | 5.9 | 0.9 |
| Average night temperature (°C) | -5.7 | -2.6 | 3.2 | 7.0 | 12.9 | 17.7 | 21.7 | 22.2 | 18.4 | 9.7 | 1.6 | -2.6 |
| Absolute minimum temperature (°C) | -17.1 | -7.6 | -4.3 | 0.2 | 4.2 | 14.7 | 17.3 | 17.3 | 13.3 | 3.9 | -8.4 | -13.9 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.6 | 9.1 | 8.1 | 8.3 | 9.8 | 7.3 | 9.5 | 7.3 | 9.0 | 7.6 | 6.2 |
| Precipitation (mm) | 43 | 12 | 43 | 53 | 134 | 233 | 496 | 301 | 249 | 14 | 41 | 114 |
| Sunny days | 19 | 20 | 22 | 13 | 17 | 10 | 4 | 4 | 13 | 23 | 18 | 19 |
| Rainy days | 6 | 6 | 9 | 17 | 14 | 20 | 27 | 27 | 17 | 8 | 12 | 8 |
| Snow days | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The largest precipitation sum in Ilgwan is at