Current sea water temperature:
+46.0°F
| Minimum sea water temperature in December: | 54.0°F |
| Maximum sea water temperature in December: | 41.5°F |
| Average sea water temperature in December: | 46.8°F |
| more information | |
14 days
forecast
forecast
| Seoul |
monthly
weather
weather
| Seoul |
Sea water temperature for the last 10 days:
| December 20 | 46.0°F | December 15 | 46.9°F |
| December 19 | 46.0°F | December 14 | 47.3°F |
| December 18 | 46.2°F | December 13 | 47.5°F |
| December 17 | 46.6°F | December 12 | 47.8°F |
| December 16 | 46.8°F | December 11 | 47.8°F |
Monthly sea water temperature, °F
When is the warmest sea in Seoul?
Based on the data about daily sea water temperature for the last three years the warmest sea in Seoul was noticed in August, September and July.
Monthly Sea Temperatures in Seoul, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 80.8°F. The highest and lowest sea temperatures during the month were 82.4°F and 78.4°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 76.6°F. The highest and lowest sea temperatures during the month were 81.0°F and 72.1°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 78.0°F. The highest and lowest sea temperatures during the month were 82.2°F and 73.4°F.
current
weather
weather
| Seoul |
weather in
December
December
| Seoul |
Best time for vacation in Seoul
Seoul on a weather map
Places in South Korea:
Name
°F
24 Hours Forecast
Seoul
Local time: 19:49
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
