Average annual temperature is 13.2 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: -16.1 °C
Number of sunny days: 188 days
Number of rainy days: 169 days
Number of snow days: 8 days
Look at detailed online map of Ilsin
* Weather data for Ilsin 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) | 13.1 | 12.1 | 25.3 | 26.5 | 32.5 | 35.5 | 33.7 | 34.2 | 30.2 | 22.3 | 23.6 | 17.6 |
| Average daytime temperature (°C) | 3.1 | 7.1 | 16.2 | 19.4 | 25.0 | 29.0 | 29.6 | 30.6 | 26.4 | 19.5 | 11.0 | 5.4 |
| Average temperature (°C) | -1.9 | 1.1 | 8.8 | 13.0 | 18.9 | 23.2 | 25.6 | 26.2 | 22.2 | 13.8 | 5.9 | 1.1 |
| Average night temperature (°C) | -6.3 | -3.4 | 2.6 | 7.1 | 13.3 | 18.4 | 22.4 | 22.4 | 18.6 | 8.9 | 1.2 | -2.7 |
| Absolute minimum temperature (°C) | -16.1 | -6.8 | -5.0 | 0.3 | 4.2 | 13.6 | 19.7 | 16.3 | 11.9 | 3.5 | -7.6 | -13.5 |
| 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) | 7.2 | 7.8 | 9.1 | 7.6 | 8.4 | 10.0 | 7.2 | 9.1 | 7.2 | 8.3 | 7.1 | 5.6 |
| Precipitation (mm) | 28 | 3 | 25 | 67 | 145 | 127 | 431 | 401 | 278 | 17 | 73 | 87 |
| Sunny days | 18 | 23 | 24 | 14 | 18 | 11 | 6 | 8 | 9 | 21 | 17 | 19 |
| Rainy days | 9 | 5 | 7 | 16 | 13 | 19 | 25 | 23 | 21 | 10 | 13 | 8 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The best time to visit Ilsin during the most sunny months:
The largest precipitation sum in Ilsin is at