The climate in Busan during September can be summarized as warm, humid and wet.
September is in the fall / autumn in Busan and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 19°C (66°F) is normal.
|Daytime temperature||26°C 78.7°F|
|Nightly temperature||18.7°C 65.6°F|
|Average temperature||22.3°C 72.1°F|
|Daily sunshine||6.1 hrs|
|Avg rainfall||182 mm 7.2 ins|
|Rainy days||11 days|
|Sea temperature||24.2°C 75.6°F|
|Windspeed||10.4kph 7 mph|
On average September is the 4th wettest month of the year in Busan with around 182mm 7.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.1 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 Busan in September 2023.
Best places to visit in September
|Hottest month:||August||29.3°C 84.7°F|
|Driest month:||December||28mm 1.1ins|
|Coldest month:||January||6.7°C 44.1°F|
|Wettest month:||July||271mm 10.7ins|