Average annual temperature is 15.6 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: -10.2 °C
Number of sunny days: 182 days
Number of rainy days: 180 days
Number of snow days: 3 days
Look at detailed online map of Ongmyŏng
* Weather data for Ongmyŏng 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) | 15.6 | 14.7 | 22.2 | 24.2 | 24.8 | 29.3 | 32.0 | 33.4 | 29.3 | 24.0 | 26.0 | 19.8 |
| Average daytime temperature (°C) | 6.8 | 10.1 | 15.4 | 17.5 | 20.8 | 25.3 | 28.0 | 29.9 | 26.7 | 21.8 | 15.1 | 9.8 |
| Average temperature (°C) | 3.6 | 6.3 | 11.3 | 14.1 | 17.6 | 21.9 | 25.3 | 27.2 | 24.1 | 18.0 | 11.2 | 6.5 |
| Average night temperature (°C) | 0.0 | 2.9 | 7.9 | 11.1 | 15.2 | 19.5 | 23.3 | 25.1 | 22.1 | 15.0 | 7.5 | 3.3 |
| Absolute minimum temperature (°C) | -10.2 | -2.1 | 0.8 | 4.9 | 10.2 | 16.4 | 20.3 | 23.8 | 17.0 | 10.1 | -1.5 | -5.6 |
| 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 | 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 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.8 | 7.5 | 8.8 | 8.1 | 7.9 | 8.2 | 7.6 | 9.8 | 7.8 | 8.8 | 8.2 | 7.1 |
| Precipitation (mm) | 62 | 55 | 63 | 147 | 243 | 301 | 323 | 283 | 209 | 12 | 50 | 89 |
| Sunny days | 24 | 18 | 17 | 16 | 13 | 12 | 5 | 5 | 5 | 23 | 23 | 21 |
| Rainy days | 6 | 10 | 14 | 14 | 18 | 18 | 26 | 26 | 25 | 8 | 7 | 8 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Ongmyŏng is at