Seoul weather in May 2026

Expect daytime maximum temperatures of 73°F in Seoul, South Korea in May based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 3.5 inches of rainfall in the month.

  • 73°F maximum daytime temperature in May in Seoul73
    73°F max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in May in Seoul8
    8 days with some rainfall
  • 54°F minimum night-time temperature in May in Seoul54
    54°F min night temperature
  • 14 hours of daylight per day in May in Seoul14
    14 hours of daylight per day
  • No heat & humidity in May in Seoul0
    No heat & humidity
  • 3.5 inches monthly rainfall in May in Seoul3.5
    3.5 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Seoul8
    8 (Very High) UV index

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The May weather guide for South Korea (Seoul) 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)  |  Imperial (°F)

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How hot is it in Seoul in May?

Daytime temperatures usually reach 73°F in Seoul in May, falling to 54°F at night.

How sunny is it in Seoul in May?

There are normally 8 hours of bright sunshine each day in Seoul in May - that's 57% of daylight hours.

Does it rain in Seoul in May?

There are usually 8 days with some rain in Seoul in May and the average monthly rainfall is 3.5 inches.

Seoul May sunrise & sunset times

Browse the sunrise and sunset times for Seoul in May 2026. Select a month to view Seoul sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 05:37 19:22
Saturday, 16th May 2026 05:22 19:35
Sunday, 31st May 2026 05:13 19:47

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