Onsŏng Climate: Weather by Month and Best Time to Visit
Best months for Onsŏng: September, June.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -7°C | -18°C | 9 mm | 2 | – | – | 4.9 |
| February | -3°C | -15°C | 11 mm | 2 | – | – | 4.8 |
| March | 4°C | -7°C | 22 mm | 5 | – | – | 4.9 |
| April | 13°C | 1°C | 44 mm | 8 | – | – | 6.5 |
| May | 19°C | 7°C | 78 mm | 13 | – | – | 6.8 |
| June | 22°C | 13°C | 77 mm | 12 | – | – | 7.5 |
| July | 25°C | 17°C | 138 mm | 14 | – | – | 7.0 |
| August | 25°C | 17°C | 128 mm | 13 | – | – | 7.1 |
| September | 21°C | 10°C | 64 mm | 8 | – | – | 7.8 |
| October | 13°C | 2°C | 39 mm | 6 | – | – | 6.8 |
| November | 2°C | -7°C | 26 mm | 5 | – | – | 4.7 |
| December | -6°C | -16°C | 11 mm | 3 | – | – | 4.7 |