Average sea water temperature in December:
+50.4°F
| Minimum sea water temperature in December: | 53.1°F |
| Maximum sea water temperature in December: | 48.0°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 50.7°F. The highest and lowest sea temperatures during the month were 52.2°F and 49.6°F.
Monthly sea water temperature in Cork, °F
Which Ireland resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Cork | 50.7°F | 50.9°F |
| Killarney | 50.1°F | 50.8°F |
| Dublin | 49.5°F | 48.9°F |
| Limerick | 46.7°F | 48.8°F |
Best time for vacation in Cork
Cork on a weather map
24 Hours Forecast
Cork
Local time: 09:39
January 13, tuesday
1200

43°F
SE
7 mph
7 mph
1500

43°F
SE
9 mph
9 mph
1800

36°F
SE
4 mph
4 mph
2100

34°F
E
4 mph
4 mph
January 14, wednesday
0000

34°F
NE
3 mph
3 mph
0300

36°F
NE
3 mph
3 mph
0600

37°F
N
6 mph
6 mph
0900

45°F
N
12 mph
12 mph


























