Average annual temperature is 13.7 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -14.7 °C
Number of sunny days: 191 days
Number of rainy days: 165 days
Number of snow days: 9 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) | 14.2 | 12.6 | 26.4 | 27.7 | 30.3 | 35.7 | 33.6 | 35.2 | 30.3 | 23.2 | 23.9 | 17.8 |
| Average daytime temperature (°C) | 4.2 | 7.6 | 16.2 | 19.1 | 24.3 | 29.0 | 29.5 | 31.0 | 26.8 | 20.1 | 11.8 | 6.1 |
| Average temperature (°C) | -1.0 | 1.6 | 9.0 | 13.0 | 18.5 | 23.2 | 25.7 | 26.6 | 22.7 | 14.9 | 7.1 | 2.1 |
| Average night temperature (°C) | -5.3 | -2.7 | 3.2 | 7.8 | 13.4 | 18.6 | 22.8 | 23.2 | 19.3 | 10.5 | 2.8 | -1.4 |
| Absolute minimum temperature (°C) | -14.7 | -5.9 | -4.3 | 1.3 | 5.8 | 15.2 | 19.5 | 18.2 | 14.4 | 5.4 | -6.1 | -12.7 |
| 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 | 10.9 | 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 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.8 | 9.2 | 7.7 | 8.3 | 10.0 | 7.2 | 9.0 | 7.3 | 8.7 | 7.0 | 5.3 |
| Precipitation (mm) | 31 | 3 | 27 | 73 | 150 | 138 | 473 | 288 | 341 | 12 | 67 | 98 |
| Sunny days | 20 | 25 | 24 | 13 | 18 | 14 | 5 | 4 | 11 | 24 | 17 | 16 |
| Rainy days | 7 | 3 | 7 | 17 | 13 | 16 | 26 | 27 | 19 | 7 | 13 | 10 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The best time to visit Ilsin during the most sunny months:
The largest precipitation sum in Ilsin is at