South Korea weather in January

Are you planning a trip to South Korea in January and wondering what kind of weather to expect? Look no further than this page for all the information you need.

What is the weather like in South Korea in January?

The weather conditions in South Korea in January are generally poor. It is a winter month.

During January in South Korea, the average maximum temperature varies from very low in Gapyeong with -1°C (31°F) to low in Yeosu with 8°C (46°F). Minimum nighttime temperatures generally drop to -1°C (30°F) in Yeosu and -12°C (10°F) in Gapyeong. On average, it is the coldest month of the year in South Korea. So be prepared and make sure to pack winter cloths.

Precipitation in January varies from low in Paju with an average of 15mm (0.6 inches) of snow/rainfall to moderate in Chungmu with 61mm (2.4 inches). It is the driest month of the year in Seoul. It is also generally a moderately sunny time of year with an average of 171 hours of sunshine in Seoul during the entire month.

To learn more about the weather conditions in specific areas of South Korea, check out the map below.

Where to go in South Korea in January

Find the average weather conditions in January for the most popular destinations in South Korea on the map below. Click on a destination dot for more detailed information.

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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 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

Popular destinations in South Korea

What is the weather like in January for the 5 most popular destinations in South Korea?

Average weather in Seoul

In January Seoul generally has very low temperatures with maximum daytime temperatures around 1°C (33°F), minimum nighttime temperatures around -11°C (12°F) and low monthly snow/rainfall. So on average the conditions are poor that month.

Seoul
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly snow/rainfall Snow/rainfall
Monthly rainy days Rainy days
Weather conditions Weather
3°C / 37°F 
-8°C / 18°F 
163 hours 
22mm / 0.9" 
8 days 
poor 
1°C / 33°F 
-11°C / 12°F 
171 hours 
18mm / 0.7" 
7 days 
poor 
4°C / 40°F 
-8°C / 18°F 
172 hours 
23mm / 0.9" 
7 days 
poor 
Climate in Seoul

Average weather in Busan

In January Busan generally has low temperatures with maximum daytime temperatures around 6°C (42°F), minimum nighttime temperatures around -1°C (31°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

Busan
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly snow/rainfall Snow/rainfall
Monthly rainy days Rainy days
Weather conditions Weather
8°C / 46°F 
1°C / 34°F 
204 hours 
26mm / 1" 
5 days 
6°C / 42°F 
-1°C / 31°F 
204 hours 
36mm / 1.4" 
6 days 
poor 
8°C / 46°F 
1°C / 34°F 
188 hours 
49mm / 1.9" 
7 days 
poor 
Climate in Busan

Average weather in Jeju

In January Jeju generally has low temperatures with maximum daytime temperatures around 5°C (40°F), minimum nighttime temperatures around 0°C (32°F) and moderate monthly rainfall. So on average the conditions are poor that month.

Jeju
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
7°C / 44°F 
2°C / 36°F 
83 hours 
45mm / 1.8" 
11 days 
poor 
5°C / 40°F 
0°C / 32°F 
69 hours 
57mm / 2.2" 
13 days 
poor 
6°C / 42°F 
1°C / 34°F 
105 hours 
77mm / 3" 
12 days 
poor 
Climate in Jeju

Average weather in Seogwipo

In January Seogwipo generally has low temperatures with maximum daytime temperatures around 7°C (44°F), minimum nighttime temperatures around 0°C (33°F) and moderate monthly rainfall. So on average the conditions are poor that month.

Seogwipo
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
9°C / 48°F 
2°C / 36°F 
162 hours 
47mm / 1.9" 
11 days 
poor 
7°C / 44°F 
0°C / 33°F 
152 hours 
59mm / 2.3" 
12 days 
poor 
8°C / 46°F 
2°C / 35°F 
154 hours 
77mm / 3" 
11 days 
poor 
Climate in Seogwipo

Average weather in Incheon

In January Incheon generally has very low temperatures with maximum daytime temperatures around 1°C (34°F), minimum nighttime temperatures around -10°C (14°F) and low monthly snow/rainfall. So on average the conditions are poor that month.

Incheon
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly snow/rainfall Snow/rainfall
Monthly rainy days Rainy days
Weather conditions Weather
3°C / 38°F 
-7°C / 19°F 
178 hours 
22mm / 0.9" 
9 days 
poor 
1°C / 34°F 
-10°C / 14°F 
188 hours 
18mm / 0.7" 
7 days 
poor 
5°C / 40°F 
-7°C / 19°F 
189 hours 
25mm / 1" 
7 days 
poor 
Climate in Incheon

Is your destination not in the list? Have a look at other destinations in South Korea.

Is January the best time to go to South Korea?

In our opinion January is not the best time to visit South Korea with commonly poor weather in Seoul.

On average the best time to visit South Korea is in April, May, June, September and October with generally pleasant weather in Seoul. The worst months are January, February, July, August and December that can have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in South Korea. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to South Korea? Get detailed historical weather averages for many cities in South Korea.

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