Average annual temperature is 14.3 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: -14.3 °C
Number of sunny days: 169 days
Number of rainy days: 180 days
Number of snow days: 16 days
Look at detailed online map of Sincheon
* Weather data for Sincheon 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) | 16.0 | 12.5 | 25.2 | 25.2 | 31.4 | 35.4 | 33.3 | 34.6 | 31.8 | 23.0 | 25.2 | 19.2 |
| Average daytime temperature (°C) | 4.9 | 7.7 | 16.4 | 19.4 | 24.3 | 28.1 | 29.7 | 30.8 | 27.1 | 20.6 | 13.2 | 7.7 |
| Average temperature (°C) | 0.3 | 2.1 | 9.3 | 13.4 | 18.6 | 22.8 | 26.1 | 26.6 | 22.8 | 15.5 | 8.8 | 4.2 |
| Average night temperature (°C) | -4.5 | -2.4 | 4.0 | 8.4 | 13.9 | 18.8 | 23.3 | 23.2 | 19.1 | 10.9 | 4.4 | 0.7 |
| Absolute minimum temperature (°C) | -14.3 | -5.5 | -3.7 | 1.7 | 5.1 | 14.9 | 20.7 | 16.2 | 13.6 | 7.3 | -3.2 | -9.3 |
| 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) | 7.1 | 7.4 | 8.9 | 7.7 | 8.1 | 9.3 | 6.9 | 9.6 | 7.8 | 8.6 | 6.5 | 5.1 |
| Precipitation (mm) | 32 | 9 | 27 | 60 | 149 | 132 | 484 | 213 | 201 | 16 | 100 | 116 |
| Sunny days | 18 | 22 | 24 | 14 | 15 | 14 | 2 | 4 | 12 | 20 | 14 | 10 |
| Rainy days | 8 | 6 | 7 | 16 | 16 | 16 | 29 | 27 | 18 | 11 | 14 | 12 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 9 |
The largest precipitation sum in Sincheon is at