Jeju weather in October 2025

Expect 21°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Jeju in October. Check more long-term weather averages for Jeju in October before you book your next holiday to South Korea in 2025/2026.

  • 21°C maximum daytime temperature in October in Jeju21
    21°C max day temperature
  • 6 hours of sunshine per day
  • 7 days with some rainfall in October in Jeju7
    7 days with some rainfall
  • 13°C minimum night-time temperature in October in Jeju13
    13°C min night temperature
  • 11 hours of daylight per day in October in Jeju11
    11 hours of daylight per day
  • No heat & humidity in October in Jeju0
    No heat & humidity
  • 83 mm monthly rainfall in October in Jeju83
    83 mm of monthly rainfall
  • UV (maximum) index 6 (High) in October in Jeju6
    6 (High) UV index
  • 22°C sea temperature in October in Jeju22
    22°C sea temperature

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The October weather guide for South Korea (Jeju) 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 Jeju in October?

Daytime temperatures usually reach 21°C in Jeju in October, falling to 13°C at night.

How sunny is it in Jeju in October?

There are normally 6 hours of bright sunshine each day in Jeju in October - that's 56% of daylight hours.

How warm is the sea around Jeju in October?

The average sea temperature around Jeju in October is 22°C.

Does it rain in Jeju in October?

There are usually 7 days with some rain in Jeju in October and the average monthly rainfall is 83mm.

Jeju October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:28 18:19
Thursday, 16th October 2025 06:39 17:59
Friday, 31st October 2025 06:52 17:43

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