South Korea weather in December 2025
December
South Korea weather in December 2025
December
Day
11 °C
Night
4 °C
Sea
17 °C
Precipitation
50 mm
in month
Rainy days
7 days
in month
Daylight
10 hours
average
Sunshine
4 hours
average
Humidity
70 %
Day
11 °C
Night
4 °C
Sea
17 °C
Precipitation
50 mm
in month
Rainy days
7 days
in month
Daylight
10 hours
average
Sunshine
4 hours
average
Humidity
70 %
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Weather overview and FAQs
Weather overview
In December in South Korea, the average air temperature ranges from 11 °C (51 °F) during the day to 4 °C (40 °F) at night. There are 7 days of rain on average, where the rainfall is 50 mm (1.97 in).
Are there good conditions to visit in South Korea in December?
In December there are not good conditions to visit South Korea. A relatively low temperature of 11 °C (51 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of 4 °C (40 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.
What is the temperature in South Korea during the day in December?
In December in South Korea, the average daily temperatures will be 11 °C (51 °F). Don't forget a sweater and light or normal jacket, but also pack light clothing in case the temperatures are above average. The weather at this time can be somewhat changeable and a wide range of clothing can become handy.
How many rainy days can I expect in December in South Korea?
There are 7 days, which are rainy in December 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 1.7 days of the week, or in general - 24 % days.
What is the sea temperature in South Korea in December?
The temperature of the sea in South Korea in December is 17 °C (62 °F). At this sea temperature, swimming probably won't be the best experience. You probably won't like to stay in water for a long time. On the other hand, there are a minority of people who seek these conditions.
How heavy is the precipitation in South Korea in December?
In December in South Korea, there is 50 mm (1.97 in) rainfall, which means on average 2 mm (0.07 in) rainfall per day.
What is the night temperature in South Korea in December?
The average night temperature in South Korea in December is 4 °C (40 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.
How long is the day (from dawn till dusk) in South Korea in December?
The length of daylight in South Korea in December is 10 hours.
Is there a wet season in December in South Korea?
No, there is no wet season in South Korea in December - you can expect 7 days of rain during the month.
How many hours of sun to expect in December in South Korea?
There is an average length of sunshine of 4 hours per day in December in South Korea.
Is South Korea rainier in December than in November?
No, December in South Korea is not a rainier month than November.
How windy is South Korea in December?
In South Korea in December, there will be an average wind scale of 5.
How does the sea temperature evolve during the month in December in South Korea?
South Korea has a decreasing trend of the sea temperature during December - from 18 °C (64 °F) in the first days of the month to 16 °C (61 °F) in the last days of the month.
What is the temperature trend in December in South Korea?
During December in South Korea, the day temperatures are decreasing - from 13 °C (56 °F) at the beginning of the month to 9 °C (49 °F) at the end of the month.
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