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South Korea weather in January 2026

Asia

South Korea weather in January 2026

 

Day

8 °C

 

Night

2 °C

 

Sea

15 °C

 

Precipitation

65 mm

in month

 

Rainy days

8 days

in month

 

Daylight

10 hours

average

 

Sunshine

4 hours

average

 

Humidity

69 %

 

Day

8 °C

 

Night

2 °C

 

Sea

15 °C

 

Precipitation

65 mm

in month

 

Rainy days

8 days

in month

 

Daylight

10 hours

average

 

Sunshine

4 hours

average

 

Humidity

69 %

Overview: South Korea
In January in South Korea, the average air temperature ranges from 8 °C (47 °F) during the day to 2 °C (36 °F) at night. There are 8 days of rain on average, where the rainfall is 65 mm (2.55 in).

Weather charts for South Korea

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Weather overview and FAQs

Weather overview

In January in South Korea, the average air temperature ranges from 8 °C (47 °F) during the day to 2 °C (36 °F) at night. There are 8 days of rain on average, where the rainfall is 65 mm (2.55 in).

Is January a good month to visit South Korea?

In January there are not good conditions to visit South Korea. A relatively low temperature of 8 °C (47 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of 2 °C (36 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.

How many rainy days can I expect in January in South Korea?

There are 8 days, which are rainy in January in South Korea, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 1.8 days of the week, or in general - 26 % days.

What is the temperature in South Korea during the day in January?

In South Korea in January, the average daily temperatures will be 8 °C (47 °F). Be sure to pack warm clothes, including a jacket and a warm sweater. On some days it may occasionally freeze, but with stronger winds, the feeling of cold may increase.

How heavy is the precipitation in January in South Korea?

In January in South Korea, there is 65 mm (2.55 in) rainfall, which means on average 2 mm (0.09 in) rainfall per day.

How long is the day (from dawn till dusk) in South Korea in January?

The length of daylight in South Korea in January is 10 hours.

Is it freezing in January in South Korea?

It is not very likely that you will experience freezing in South Korea in January, daily temperatures will rise to 2 °C (36 °F).

What level of humidity is to expect in January in South Korea?

Humidity in South Korea in January is 69 %.

How windy is it in January in South Korea?

In January in South Korea, there will be an average wind scale of 5.

Is South Korea rainier in January than in December?

Yes, South Korea is a rainier January than in December.

How does the sea temperature evolve during the month in January in South Korea?

South Korea has a decreasing trend of the sea temperature during January - from 16 °C (61 °F) in the first days of the month to 15 °C (58 °F) in the last days of the month.

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