World Resorts South Korea Seoul Weather

Seoul weather in December

Weather in Seoul: December

Average day temperature: 35.9°F
Average night temperature: 30.0°F
Sea water temperature: 46.8°F
Number of sunny days: 15 days
Day length: 9.6 - 9.8 hours
Number of rainy days: 1 day
Precipitation totals: 1.1 in.

Air temperature in December, °F

Show year:
2023
2022
2021

The highest day temperature during December of 2023 was 56°F. At the same time the lowest night temperature was 10°F. Day and night temperature averages during December were 36.8°F and 31.4°F.

Sea water temperature in Seoul in December, °F

Show year:
2023
2022
2021

The average sea water temperature in December of 2023 was 46.2°F. The highest and lowest sea temperatures during the month were 51.1°F and 43.0°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are sunny but cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Seoul in December is 1.1 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 5.7 mph It makes December one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 5.6.

Best time for vacation in Seoul

Sunniest months:
October 20 days
May 19 days
March 18 days
Warmest months:
August 86.6 °F
July 85.8 °F
June 82.1 °F
Warmest sea temp:
August 78.3 °F
September 74.5 °F
July 74.4 °F
Coldest months:
January 32.8 °F
December 35.9 °F
February 38.7 °F
Rainiest months:
July 11 days
August 9 days
May 5 days
Windiest months:
April 7.3 mph
March 7.3 mph
May 6.6 mph

Seoul on a weather map

Seoul
+57°F
NE 9 mph
Feels like: +54°F
Precip.: 100%
Places in South Korea:
Name
°F
+57°F
+54°F
+59°F
+66°F
+57°F
+64°F
24 Hours Forecast
Seoul
Local time: 15:11
May 06, monday
1800
57°F
NE
9 mph
2100
55°F
N
8 mph
May 07, tuesday
0000
55°F
NE
9 mph
0300
54°F
N
6 mph
0600
54°F
W
3 mph
0900
55°F
W
5 mph
1200
59°F
W
9 mph
1500
63°F
SW
12 mph
Units of measurement: °C / °F