Jeju weather in January 2025

Expect 46°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Jeju in January. Check more long-term weather averages for Jeju in January before you book your next holiday to South Korea in 2025/2026.

  • 46°F maximum daytime temperature in January in Jeju46
    46°F max day temperature
  • 4 hours of sunshine per day
  • 12 days with some rainfall in January in Jeju12
    12 days with some rainfall
  • 34°F minimum night-time temperature in January in Jeju34
    34°F min night temperature
  • 10 hours of daylight per day in January in Jeju10
    10 hours of daylight per day
  • No heat & humidity in January in Jeju0
    No heat & humidity
  • 2.4 inches monthly rainfall in January in Jeju2.4
    2.4 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in January in Jeju3
    3 (Moderate) UV index
  • 59°F sea temperature in January in Jeju59
    59°F sea temperature

More about Jeju

Jeju by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for South Korea

Travel Up: Top offers on flights worldwide

  • Check out top flight deals & low fares from popular airlines
  • Search for return & one-way flights or multi-city trips
  • Airlines include BA, Virgin Atlantic, United & Turkish Airlines
Go to Travel Up deal >>

View all Travel Up offers

The January weather guide for South Korea (Jeju) 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)

Back to top

How warm is it in Jeju in January?

Daytime temperatures usually reach 46°F in Jeju in January, falling to 34°F at night.

How sunny is it in Jeju in January?

There are normally 4 hours of bright sunshine each day in Jeju in January - that's 38% of daylight hours.

How warm is the sea around Jeju in January?

The average sea temperature around Jeju in January is 59°F.

Does it rain in Jeju in January?

There are usually 12 days with some rain in Jeju in January and the average monthly rainfall is 2.4 inches.

Jeju January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 07:38 17:37
Thursday, 16th January 2025 07:38 17:50
Friday, 31st January 2025 07:31 18:04

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^