Donghae weather in September 2025

Expect 23°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Donghae in September. Check more long-term weather averages for Donghae in September before you book your next holiday to South Korea in 2025/2026.

  • 23°C maximum daytime temperature in September in Donghae23
    23°C max day temperature
  • 6 hours of sunshine per day
  • 10 days with some rainfall in September in Donghae10
    10 days with some rainfall
  • 15°C minimum night-time temperature in September in Donghae15
    15°C min night temperature
  • 12 hours of daylight per day in September in Donghae12
    12 hours of daylight per day
  • No heat & humidity in September in Donghae0
    No heat & humidity
  • 203 mm monthly rainfall in September in Donghae203
    203 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Donghae7
    7 (High) UV index
  • 22°C sea temperature in September in Donghae22
    22°C sea temperature

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The September weather guide for South Korea (Donghae) 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 Donghae in September?

Daytime temperatures usually reach 23°C in Donghae in September, falling to 15°C at night.

How sunny is it in Donghae in September?

There are normally 6 hours of bright sunshine each day in Donghae in September - that's 48% of daylight hours.

How warm is the sea around Donghae in September?

The average sea temperature around Donghae in September is 22°C.

Does it rain in Donghae in September?

There are usually 10 days with some rain in Donghae in September and the average monthly rainfall is 203mm.

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

On average less than 1 day in September in Donghae is likely to be affected by the passage of one or more tropical storms.

Donghae September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:54 18:53
Monday, 15th September 2025 06:05 18:32
Tuesday, 30th September 2025 06:18 18:09

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