Average annual temperature is 13.4 °C
Absolute maximum temperature: 32.9 °C
Absolute minimum temperature: -13.4 °C
Number of sunny days: 177 days
Number of rainy days: 180 days
Number of snow days: 8 days
Look at detailed online map of Tanch’ŏn
* Weather data for Tanch’ŏn 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) | 15.9 | 13.5 | 21.3 | 25.3 | 29.1 | 30.1 | 31.7 | 32.9 | 29.0 | 23.0 | 24.9 | 16.8 |
| Average daytime temperature (°C) | 5.2 | 8.2 | 15.6 | 17.2 | 21.0 | 25.8 | 27.2 | 28.9 | 25.5 | 19.6 | 12.6 | 7.0 |
| Average temperature (°C) | 0.3 | 3.3 | 9.7 | 12.1 | 16.7 | 21.2 | 24.2 | 25.3 | 21.8 | 14.7 | 7.7 | 3.0 |
| Average night temperature (°C) | -3.3 | -0.7 | 5.2 | 7.6 | 13.3 | 17.5 | 21.9 | 22.5 | 19.0 | 11.0 | 3.7 | -0.2 |
| Absolute minimum temperature (°C) | -13.4 | -6.2 | -4.0 | 0.0 | 7.4 | 13.6 | 18.8 | 20.1 | 13.8 | 4.5 | -4.7 | -10.2 |
| 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) | 7.6 | 7.5 | 8.6 | 7.9 | 7.6 | 9.0 | 6.2 | 9.8 | 7.6 | 8.5 | 7.8 | 6.5 |
| Precipitation (mm) | 75 | 31 | 63 | 150 | 283 | 235 | 385 | 334 | 192 | 15 | 103 | 125 |
| Sunny days | 25 | 16 | 23 | 15 | 12 | 12 | 3 | 6 | 7 | 22 | 20 | 16 |
| Rainy days | 5 | 10 | 8 | 15 | 19 | 18 | 28 | 25 | 23 | 9 | 10 | 10 |
| Snow days | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The largest precipitation sum in Tanch’ŏn is at