Seoul weather in January 2026

Expect daytime maximum temperatures of 1°C in Seoul, South Korea in January based on long-term weather averages. There are 6 hours of sunshine per day on average, which might fall as snow.

  • 1°C maximum daytime temperature in January in Seoul1
    1°C max day temperature
  • 6 hours of sunshine per day
  • 7 days with some rainfall in January in Seoul7
    7 days with some rainfall
  • -8°C minimum night-time temperature in January in Seoul-8
    -8°C min night temperature
  • 10 hours of daylight per day in January in Seoul10
    10 hours of daylight per day
  • No heat & humidity in January in Seoul0
    No heat & humidity
  • 22 mm monthly rainfall in January in Seoul22
    22 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Seoul2
    2 (Low) UV index

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The January 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 cold is it in Seoul in January?

Daytime temperatures usually reach 1°C in Seoul in January, falling to -8°C at night.

How sunny is it in Seoul in January?

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

Does it rain in Seoul in January?

There are usually 7 days with some rain in Seoul in January and the average monthly rainfall is 22mm. Rain may fall as snow in this month.

Seoul January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:47 17:24
Friday, 16th January 2026 07:46 17:38
Saturday, 31st January 2026 07:37 17:54

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