The climate in Changyŏn during September can be summarized as warm and damp.
September is in the fall / autumn in Changyŏn and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (76°F), whilst at night 15°C (59°F) is normal.
| Daytime temperature | 24.2°C 75.6°F |
|---|---|
| Nightly temperature | 15°C 59°F |
| Average temperature | 19.6°C 67.3°F |
| Daily sunshine | 7.8 hrs |
| Avg rainfall | 106 mm 4.2 ins |
| Rainy days | 8 days |
| Sea temperature | 22.7°C 72.9°F |
| Humidity | 74% |
| Windspeed | 7.9kph 5 mph |
On average September is the 4th wettest month of the year in Changyŏn with around 106mm 4.2 inches of rain making it a damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.8 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Changyŏn in September 2025.
Best places to visit in September
| Hottest month: | August | 27.9°C 82.2°F |
|---|---|---|
| Driest month: | February | 13mm 0.5ins |
| Sunniest month: | October | 7.7hrs |
| Coldest month: | January | -1.3°C 29.7°F |
| Wettest month: | July | 309mm 12.2ins |