Busan
South Korea
Long term weather forecast
Long term weather forecast

September weather forecast and Climate
Busan, South Korea

  • Average high temperature in September: 26.3°C

Warmest month (with highest average high temperature) is August (29.4°C).
Month with lowest average high temperature is January (7.8°C).

  • Average low temperature in September: 19.5°C

Month with highest average low temperature is August (23.4°C).
Coldest month (with lowest average low temperature) is January (-0.6°C).

  • Average humidity in September: 73.9%

Month with highest relative humidity is July (84.3%).
Month with lowest relative humidity is January (48.3%).

  • Average rainfall in September: 158mm

Wettest month (with highest rainfall) is July (316.9mm).
Driest month (with lowest rainfall) is December (22.8mm).

  • Average rainfall days in September: 9.3 days

Month with highest number of rainy days is July (13.6 days).
Month with lowest number of rainy days is December (4.2 days).

  • Average sea temperature in September: 24°C

Best month for swimming (with highest average sea temperature) is August (26°C).
Coldest months (with lowest average sea temperature) are February and March (13°C).

  • Average daylight in September: 12h

Months with longest days are May, June and July (Average daylight: 14h).
Months with shortest days are January, November and December (Average daylight: 10h).

  • Average sunshine in September: 5.6h

Month with most sunshine is May (Average sunshine: 7.2h).
Month with least sunshine is July (Average sunshine: 5.3h).

  • Average UV index in September: 8

Months with highest UV index are June, July and August (UV index 10).
Months with lowest UV index are January and December (UV index 2).

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