Average annual temperature is 14.7 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -11.0 °C
Number of sunny days: 183 days
Number of rainy days: 179 days
Number of snow days: 3 days
Look at detailed online map of Silli
* Weather data for Silli 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) | 15.3 | 13.0 | 22.1 | 22.8 | 23.5 | 27.9 | 30.7 | 33.7 | 29.7 | 23.8 | 23.8 | 17.3 |
| Average daytime temperature (°C) | 5.8 | 8.7 | 15.1 | 17.1 | 20.5 | 24.9 | 27.4 | 29.8 | 26.7 | 20.7 | 13.6 | 8.6 |
| Average temperature (°C) | 2.0 | 4.1 | 9.9 | 13.3 | 17.4 | 21.9 | 25.0 | 26.8 | 23.8 | 16.8 | 9.8 | 5.2 |
| Average night temperature (°C) | -1.5 | 0.6 | 5.7 | 9.6 | 14.7 | 19.5 | 23.2 | 24.4 | 21.3 | 13.5 | 6.3 | 2.1 |
| Absolute minimum temperature (°C) | -11.0 | -3.2 | -0.1 | 4.1 | 9.2 | 16.4 | 20.0 | 20.9 | 17.0 | 7.8 | -1.2 | -6.4 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.6 | 7.1 | 8.5 | 7.3 | 7.1 | 8.1 | 5.9 | 10.5 | 8.2 | 8.7 | 7.6 | 6.1 |
| Precipitation (mm) | 46 | 42 | 39 | 132 | 246 | 208 | 349 | 319 | 202 | 16 | 80 | 79 |
| Sunny days | 24 | 20 | 23 | 14 | 11 | 10 | 2 | 5 | 10 | 21 | 20 | 23 |
| Rainy days | 6 | 8 | 8 | 16 | 20 | 20 | 29 | 26 | 20 | 10 | 10 | 6 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Silli during the most sunny months:
The largest precipitation sum in Silli is at