20.12
sat
sat
Day
45°F
NE 3 mph
Precip.
100%
100%
Night
36°F
SE 9 mph
Precip.
0%
0%
21.12
sun
sun
Day
32°F
SE 12 mph
Precip.
0%
0%
Night
28°F
SE 6 mph
Precip.
0%
0%
22.12
mon
mon
Day
34°F
SW 2 mph
Precip.
0%
0%
Night
34°F
W 2 mph
Precip.
0%
0%
23.12
tue
tue
Day
41°F
W 4 mph
Precip.
0%
0%
Night
37°F
SE 3 mph
Precip.
100%
100%
24.12
wed
wed
Day
37°F
SE 6 mph
Precip.
0%
0%
Night
30°F
SE 4 mph
Precip.
0%
0%
25.12
thu
thu
Day
36°F
SE 2 mph
Precip.
0%
0%
Night
32°F
SW 1 mph
Precip.
0%
0%
26.12
fri
fri
Day
39°F
SW 2 mph
Precip.
0%
0%
Night
36°F
SE 2 mph
Precip.
79%
79%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 48.4°F. The highest and lowest sea temperatures during the month were 51.6°F and 46.0°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 38.5°F. The highest and lowest sea temperatures during the month were 42.1°F and 36.3°F.
Air temperature in Seoul, °F
Precipitation total in Seoul, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Seoul
Seoul on a weather map
Places in South Korea:
Name
°F
24 Hours Forecast
Seoul
Local time: 19:48
December 20, saturday
2100
41°F
E
6 mph
6 mph
December 21, sunday
0000
36°F
SE
9 mph
9 mph
0300
32°F
SE
11 mph
11 mph
0600
30°F
SE
11 mph
11 mph
0900
30°F
SE
12 mph
12 mph
1200
32°F
SE
12 mph
12 mph
1500
34°F
SE
11 mph
11 mph
1800
32°F
SE
9 mph
9 mph
