Weather in Seoul in September 2018

  • 25°C maximum daytime temperature in September in Seoul25
    25°C max day temperature
  • 7 hours of sunshine per day (54% of daylight hours) in September in Seoul7
    7 hours of sunshine per day
  • 9 days with some rainfall in September in Seoul9
    9 days with some rainfall
  • 16°C minimum night-time temperature in September in Seoul16
    16°C min night temperature
  • 12 hours of daylight per day in September in Seoul12
    12 hours of daylight per day
  • Low heat & humidity in September in SeoulL
    Low heat & humidity
  • 161 mm monthly rainfall in September in Seoul161
    161 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Seoul7
    7 (High) UV index

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

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Expect 25°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Seoul in September. Check more long-term weather averages for Seoul in September before you book your next holiday to South Korea in 2018.

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More about Seoul

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

Guide to Seoul weather in September

The average maximum daytime temperature in Seoul in September is a warm 25°C (77°F) with low heat & humidity. The average night-time temperature is usually a comfortable 16°C (61°F). There are usually 7 hours of bright sunshine each day, which represents 54% of the 12 hours of daylight.

Expect 161mm (6.3 inches) of rainfall across the whole of September with 9 days with some rain falling. Maximum UV levels will be high (7 UV index) at midday when the skies are clear.

Seoul sunrise & sunset times for September 2018

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st September 2018 06:02 19:02
Sunday, 2nd September 2018 06:03 19:00
Monday, 3rd September 2018 06:04 18:59
Tuesday, 4th September 2018 06:04 18:57
Wednesday, 5th September 2018 06:05 18:56
Thursday, 6th September 2018 06:06 18:55
Friday, 7th September 2018 06:07 18:53
Saturday, 8th September 2018 06:08 18:51
Sunday, 9th September 2018 06:09 18:50
Monday, 10th September 2018 06:09 18:48
Tuesday, 11th September 2018 06:10 18:47
Wednesday, 12th September 2018 06:11 18:45
Thursday, 13th September 2018 06:12 18:44
Friday, 14th September 2018 06:13 18:42
Saturday, 15th September 2018 06:14 18:41
Sunday, 16th September 2018 06:14 18:39
Monday, 17th September 2018 06:15 18:38
Tuesday, 18th September 2018 06:16 18:36
Wednesday, 19th September 2018 06:17 18:35
Thursday, 20th September 2018 06:18 18:33
Friday, 21st September 2018 06:19 18:31
Saturday, 22nd September 2018 06:19 18:30
Sunday, 23rd September 2018 06:20 18:28
Monday, 24th September 2018 06:21 18:27
Tuesday, 25th September 2018 06:22 18:25
Wednesday, 26th September 2018 06:23 18:24
Thursday, 27th September 2018 06:24 18:22
Friday, 28th September 2018 06:24 18:21
Saturday, 29th September 2018 06:25 18:19
Sunday, 30th September 2018 06:26 18:18
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