Average annual temperature is 15.4 °C
Absolute maximum temperature: 31.3 °C
Absolute minimum temperature: -6.6 °C
Number of sunny days: 124 days
Number of rainy days: 234 days
Number of snow days: 7 days
Look at detailed online map of Kusan
* Weather data for Kusan 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) | 17.3 | 14.5 | 20.2 | 22.7 | 26.6 | 29.3 | 31.3 | 31.3 | 29.8 | 23.0 | 25.0 | 20.1 |
| Average daytime temperature (°C) | 6.8 | 7.7 | 13.3 | 16.3 | 20.7 | 24.0 | 28.1 | 28.6 | 25.8 | 19.8 | 14.3 | 10.1 |
| Average temperature (°C) | 4.1 | 5.2 | 9.8 | 13.0 | 17.7 | 21.3 | 26.0 | 26.3 | 23.7 | 17.3 | 11.6 | 7.6 |
| Average night temperature (°C) | 1.4 | 2.7 | 6.7 | 9.9 | 14.9 | 18.9 | 24.2 | 24.3 | 21.8 | 15.0 | 8.9 | 5.5 |
| Absolute minimum temperature (°C) | -6.6 | -1.8 | -1.0 | 4.5 | 10.0 | 14.2 | 21.8 | 21.5 | 16.9 | 11.6 | 2.8 | -2.0 |
| 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) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.4 | 12.4 | 11.3 | 10.4 | 10.0 |
| 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) | 5.5 | 5.9 | 8.0 | 8.2 | 7.5 | 7.3 | 6.0 | 10.5 | 8.9 | 8.7 | 6.6 | 5.0 |
| Precipitation (mm) | 150 | 119 | 64 | 140 | 368 | 228 | 334 | 290 | 138 | 23 | 119 | 130 |
| Sunny days | 10 | 10 | 20 | 15 | 13 | 7 | 1 | 4 | 3 | 20 | 9 | 12 |
| Rainy days | 16 | 17 | 11 | 15 | 18 | 23 | 30 | 27 | 27 | 11 | 21 | 18 |
| Snow days | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Kusan during the most sunny months:
The largest precipitation sum in Kusan is at