Average annual temperature is 13.7 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: -13.4 °C
Number of sunny days: 163 days
Number of rainy days: 187 days
Number of snow days: 15 days
Look at detailed online map of Inchon
* Weather data for Inchon 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) | 15.8 | 11.2 | 24.5 | 24.8 | 29.0 | 31.9 | 32.3 | 33.3 | 30.7 | 22.1 | 24.2 | 18.1 |
| Average daytime temperature (°C) | 4.0 | 6.4 | 14.2 | 17.9 | 22.5 | 26.0 | 28.6 | 29.9 | 26.3 | 19.7 | 12.4 | 7.0 |
| Average temperature (°C) | 0.0 | 1.6 | 8.2 | 12.6 | 17.7 | 21.7 | 25.2 | 26.2 | 22.4 | 15.4 | 8.7 | 3.7 |
| Average night temperature (°C) | -4.5 | -2.1 | 3.8 | 8.2 | 13.8 | 18.5 | 22.7 | 23.1 | 19.1 | 11.2 | 4.5 | 0.3 |
| Absolute minimum temperature (°C) | -13.4 | -5.0 | -3.6 | 2.5 | 6.6 | 14.4 | 19.6 | 17.7 | 14.7 | 7.2 | -3.7 | -10.9 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.8 | 7.4 | 8.9 | 7.6 | 8.0 | 9.4 | 6.9 | 9.7 | 7.8 | 8.5 | 6.5 | 4.8 |
| Precipitation (mm) | 41 | 8 | 24 | 71 | 140 | 161 | 480 | 184 | 192 | 18 | 89 | 130 |
| Sunny days | 18 | 22 | 24 | 15 | 15 | 15 | 1 | 4 | 9 | 20 | 12 | 8 |
| Rainy days | 7 | 6 | 7 | 15 | 16 | 15 | 30 | 27 | 21 | 11 | 17 | 15 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8 |
The best time to visit Inchon during the most sunny months:
The largest precipitation sum in Inchon is at