Average annual temperature is 11.0 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: -23.1 °C
Number of sunny days: 202 days
Number of rainy days: 147 days
Number of snow days: 16 days
Look at detailed online map of Ongsan
* Weather data for Ongsan North 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) | 7.7 | 7.9 | 17.2 | 22.7 | 28.9 | 28.6 | 31.4 | 31.7 | 29.7 | 22.3 | 23.0 | 15.4 |
| Average daytime temperature (°C) | -1.8 | 3.4 | 10.4 | 15.5 | 21.6 | 24.5 | 28.1 | 28.0 | 25.7 | 18.7 | 7.1 | 0.9 |
| Average temperature (°C) | -5.8 | -0.9 | 4.9 | 10.7 | 16.6 | 20.5 | 24.7 | 25.0 | 21.6 | 13.8 | 3.4 | -2.8 |
| Average night temperature (°C) | -11.1 | -4.4 | 0.0 | 6.7 | 12.3 | 17.1 | 22.0 | 22.4 | 17.7 | 9.4 | -0.2 | -6.8 |
| Absolute minimum temperature (°C) | -23.1 | -7.2 | -3.9 | 1.3 | 6.0 | 14.0 | 19.2 | 17.0 | 11.4 | 4.1 | -6.9 | -17.6 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.0 | 9.5 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.2 | 8.2 | 9.3 | 8.8 | 9.4 | 10.1 | 9.1 | 8.3 | 9.2 | 8.5 | 6.8 | 6.4 |
| Precipitation (mm) | 32 | 4 | 26 | 92 | 149 | 179 | 207 | 321 | 43 | 70 | 99 | 54 |
| Sunny days | 18 | 24 | 24 | 16 | 21 | 11 | 9 | 9 | 12 | 20 | 18 | 20 |
| Rainy days | 3 | 4 | 6 | 14 | 10 | 19 | 22 | 22 | 18 | 11 | 11 | 7 |
| Snow days | 10 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
The largest precipitation sum in Ongsan is at