Seoul weather in May 2025

Expect 23°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Seoul in May. Check more long-term weather averages for Seoul in May before you book your next holiday to South Korea in 2025/2026.

  • 23°C maximum daytime temperature in May in Seoul23
    23°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in May in Seoul8
    8 days with some rainfall
  • 12°C minimum night-time temperature in May in Seoul12
    12°C 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
  • 90 mm monthly rainfall in May in Seoul90
    90 mm 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Seoul in May?

Daytime temperatures usually reach 23°C in Seoul in May, falling to 12°C 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 90mm.

Seoul May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:37 19:22
Friday, 16th May 2025 05:22 19:35
Saturday, 31st May 2025 05:13 19:47

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