Measurements:
°C
°F
Brussel
64°F
W 9 mph
Feels like: 64°F
Precip: 32%
World Resorts Belgium Brussel Weather

Brussel Sea Water Temperature

Current Sea Water Temperature:
+65.8°F
Maximum Sea Water Temperature in September: 73.6°F
Minimum Sea Water Temperature in September: 60.6°F
Average water temperature in September: 66.8°F

Sea Water Temperature for the Last 10 Days:

September 28 65.8°F September 23 66.6°F
September 27 64.6°F September 22 67.0°F
September 26 65.2°F September 21 68.0°F
September 25 66.8°F September 20 67.8°F
September 24 67.0°F September 19 67.8°F

When is the Warmest Sea for Brussel?

According to our data for the last three years for Brussel the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Brussel was 73.1°F. The maximum and minimum values were 69.6°F and 74.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Brussel was 73.3°F. The maximum and minimum values were 70.4°F and 74.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Brussel was 68.2°F. The maximum and minimum values were 64.6°F and 71.0°F respectively.

Best Time to Visit Brussel
The most sunny months:
July 10 days
March 10 days
April 10 days
The most warm months:
August 76.0 °F
July 75.4 °F
June 72.2 °F
Warmest sea temperature:
August 70.3 °F
July 69.1 °F
September 66.8 °F
The most cold months:
January 40.8 °F
December 43.8 °F
February 44.0 °F
The most rainy months:
December 5 days
July 4 days
May 4 days
The most windy months:
December 12 mph
February 11 mph
January 11 mph

Brussel on the Weather Map

Belgium Resorts:
NAME
F°
Antwerpen +64
Brugge +62
Brussel +64
Charleroi +64
Gent +64
Kortrijk +64
Liege +64
Namur +64
Oostende +64
24 Hours Weather Forecast
Brussel
Local time: 00:42
29 sep, tuesday
0300 62°F
SW
7 mph
0600 62°F
W
5 mph
0900 66°F
NW
6 mph
1200 78°F
N
11 mph
1500 86°F
N
12 mph
1800 82°F
N
9 mph
2100 74°F
NW
8 mph
30 sep, wednesday
0000 72°F
NW
9 mph