Average sea water temperature in December:
+45.4°F
| Minimum sea water temperature in December: | 49.6°F |
| Maximum sea water temperature in December: | 41.0°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 45.6°F. The highest and lowest sea temperatures during the month were 47.5°F and 41.0°F.
Monthly sea water temperature in Brussel, °F
Which Belgium resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Kortrijk | 47.0°F | 46.8°F |
| Oostende | 46.9°F | 46.7°F |
| Gent | 45.6°F | 45.4°F |
| Brugge | 45.6°F | 45.8°F |
| Brussel | 45.6°F | 45.6°F |
| Antwerpen | 45.2°F | 45.2°F |
Best time for vacation in Brussel
Brussel on a weather map
Places in Belgium:
Name
°F
24 Hours Forecast
Brussel
Local time: 13:53
January 14, wednesday
1500

45°F
NW
1 mph
1 mph
1800

46°F
N
7 mph
7 mph
2100

48°F
N
11 mph
11 mph
January 15, thursday
0000

46°F
N
11 mph
11 mph
0300

46°F
N
12 mph
12 mph
0600

48°F
NE
12 mph
12 mph
0900

46°F
NE
12 mph
12 mph
1200

46°F
N
13 mph
13 mph

























