Jeju weather in January (Jeju Island, South Korea)

Curious about the January weather in Jeju? This guide provides all the details you need.

In January, Jeju generally has low temperatures and moderate rainfall. January is a winter month. Throughout the daytime, temperatures often hover around 9°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 5°C. This month often claims the chilliest averages of the year.

Jeju in January usually receives moderate rainfall, averaging around 81 mm for the month. Typically around 13 days of rainfall is expected.

The city usually sees around 69 hours of sunlight, indicating fewer sunny days.

If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Jeju. October generally stands out with the best circumstances. While January and February tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Jeju climate page with graphs.

 

Jeju, monthly averages in January

Min Temperature 5°C  

Max Temperature 9°C  

Chance of Rain 42%  

Precipitation 81 mm  

Rainy days 13 days  

Humidity 65%  

Sunshine 69 hours  

Percentage Sunshine  

Where to go in South Korea in January

Find out more about the weather in South Korea in January and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Jeju in January?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in January.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

4/10

Outdoor sports

4/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Jeju.

Our site offers climate and forecast data for every country in the world. Are you going to South Korea? On this website you can find historical weather averages for many cities in South Korea. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.