Busan weather in September 2025

Expect 26°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Busan in September. Check more long-term weather averages for Busan in September before you book your next holiday to South Korea in 2025/2026.

  • 26°C maximum daytime temperature in September in Busan26
    26°C max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in September in Busan11
    11 days with some rainfall
  • 19°C minimum night-time temperature in September in Busan19
    19°C min night temperature
  • 12 hours of daylight per day in September in Busan12
    12 hours of daylight per day
  • Low heat & humidity in September in BusanL
    Low heat & humidity
  • 182 mm monthly rainfall in September in Busan182
    182 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Busan8
    8 (Very High) UV index
  • 24°C sea temperature in September in Busan24
    24°C sea temperature

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The September weather guide for South Korea (Busan) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Busan in September?

Daytime temperatures usually reach 26°C in Busan in September with low heat and humidity, falling to 19°C at night.

How sunny is it in Busan in September?

There are normally 6 hours of bright sunshine each day in Busan in September - that's 46% of daylight hours.

How warm is the sea around Busan in September?

The average sea temperature around Busan in September is 24°C.

Does it rain in Busan in September?

There are usually 11 days with some rain in Busan in September and the average monthly rainfall is 182mm.

What is the chance of a typhoon in Busan in September?

On average 1.2 days in September in Busan are likely to be affected by the passage of one or more tropical storms.

Busan September sunrise & sunset times

Browse the sunrise and sunset times for Busan in September 2025. Select a month to view Busan sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:56 18:51
Monday, 15th September 2025 06:06 18:31
Tuesday, 30th September 2025 06:18 18:10

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