Average annual temperature is 14.1 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -12.1 °C
Number of sunny days: 192 days
Number of rainy days: 171 days
Number of snow days: 2 days
Look at detailed online map of Seomjin
* Weather data for Seomjin 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) | 16.7 | 13.9 | 23.4 | 26.6 | 27.5 | 30.6 | 32.5 | 34.3 | 30.6 | 23.8 | 26.2 | 18.3 |
| Average daytime temperature (°C) | 6.5 | 9.7 | 16.9 | 18.4 | 21.9 | 26.7 | 28.2 | 30.3 | 26.8 | 21.1 | 14.0 | 8.6 |
| Average temperature (°C) | 1.1 | 3.8 | 10.5 | 13.2 | 17.5 | 22.1 | 24.9 | 26.3 | 22.7 | 15.1 | 8.4 | 3.4 |
| Average night temperature (°C) | -3.1 | -0.8 | 5.4 | 8.4 | 13.6 | 18.5 | 22.3 | 22.9 | 19.3 | 10.1 | 3.9 | -0.5 |
| Absolute minimum temperature (°C) | -12.1 | -5.6 | -3.2 | 2.1 | 4.8 | 15.5 | 18.7 | 19.9 | 15.4 | 4.7 | -4.5 | -8.4 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.2 | 13.4 | 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) | 7.7 | 7.5 | 8.5 | 7.6 | 7.5 | 8.8 | 5.9 | 10.0 | 7.8 | 8.7 | 8.0 | 6.6 |
| Precipitation (mm) | 77 | 32 | 62 | 144 | 281 | 264 | 424 | 353 | 240 | 8 | 87 | 87 |
| Sunny days | 26 | 21 | 22 | 15 | 13 | 11 | 2 | 6 | 10 | 25 | 22 | 19 |
| Rainy days | 5 | 7 | 9 | 15 | 18 | 19 | 29 | 25 | 20 | 6 | 8 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Seomjin during the most sunny months:
The largest precipitation sum in Seomjin is at