Weather in Jeju in September 2018

  • 26°C maximum daytime temperature in September in Jeju26
    26°C max day temperature
  • 6 hours of sunshine per day (51% of daylight hours) in September in Jeju6
    6 hours of sunshine per day
  • 10 days with some rainfall in September in Jeju10
    10 days with some rainfall
  • 19°C minimum night-time temperature in September in Jeju19
    19°C min night temperature
  • 12 hours of daylight per day in September in Jeju12
    12 hours of daylight per day
  • Low heat & humidity in September in JejuL
    Low heat & humidity
  • 188 mm monthly rainfall in September in Jeju188
    188 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Jeju8
    8 (Very High) UV index
  • 25°C sea temperature in September in Jeju25
    25°C sea temperature

Going to Jeju? Find the best month to visit Jeju based on the weather.

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Expect 26°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Jeju in September. Check more long-term weather averages for Jeju in September before you book your next holiday to South Korea in 2018.

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More about Jeju

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

Guide to Jeju weather in September

The average maximum daytime temperature in Jeju in September is a warm 26°C (79°F) with low heat & humidity. The average night-time temperature is usually a comfortable 19°C (66°F). There are usually 6 hours of bright sunshine each day, which represents 51% of the 12 hours of daylight.

Expect 188mm (7.4 inches) of rainfall across the whole of September with 10 days with some rain falling. Maximum UV levels will be very high (8 UV index) at midday when the skies are clear.

The average sea temperature in and around Jeju in September is 25°C (77°F).

Jeju sunrise & sunset times for September 2018

Browse the sunrise & sunset times for Jeju in September 2018. Select a month to view Jeju sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st September 2018 06:08 19:00
Sunday, 2nd September 2018 06:08 18:59
Monday, 3rd September 2018 06:09 18:57
Tuesday, 4th September 2018 06:10 18:56
Wednesday, 5th September 2018 06:10 18:55
Thursday, 6th September 2018 06:11 18:53
Friday, 7th September 2018 06:12 18:52
Saturday, 8th September 2018 06:12 18:51
Sunday, 9th September 2018 06:13 18:49
Monday, 10th September 2018 06:14 18:48
Tuesday, 11th September 2018 06:14 18:47
Wednesday, 12th September 2018 06:15 18:45
Thursday, 13th September 2018 06:16 18:44
Friday, 14th September 2018 06:16 18:42
Saturday, 15th September 2018 06:17 18:41
Sunday, 16th September 2018 06:18 18:40
Monday, 17th September 2018 06:18 18:38
Tuesday, 18th September 2018 06:19 18:37
Wednesday, 19th September 2018 06:20 18:36
Thursday, 20th September 2018 06:20 18:34
Friday, 21st September 2018 06:21 18:33
Saturday, 22nd September 2018 06:22 18:31
Sunday, 23rd September 2018 06:22 18:30
Monday, 24th September 2018 06:23 18:29
Tuesday, 25th September 2018 06:24 18:27
Wednesday, 26th September 2018 06:24 18:26
Thursday, 27th September 2018 06:25 18:24
Friday, 28th September 2018 06:26 18:23
Saturday, 29th September 2018 06:26 18:22
Sunday, 30th September 2018 06:27 18:20
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