Measurements:
°C
°F
Brussel
50°F
W 12 mph
Feels like: 44°F
Precip: 66%
World Resorts Belgium Brussel Weather

Brussel Sea Water Temperature

Current Sea Water Temperature:
+53.2°F
Maximum Sea Water Temperature in April: 54.4°F
Minimum Sea Water Temperature in April: 38.6°F
Average water temperature in April: 48.9°F

Sea Water Temperature for the Last 10 Days:

April 21 53.2°F April 16 52.4°F
April 20 52.6°F April 15 51.2°F
April 19 51.8°F April 14 51.6°F
April 18 52.8°F April 13 51.4°F
April 17 52.2°F April 12 49.0°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Brussel was 71.3°F. The maximum and minimum values were 70.2°F and 72.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Brussel was 71.4°F. The maximum and minimum values were 69.0°F and 72.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Brussel was 66.7°F. The maximum and minimum values were 62.4°F and 70.4°F respectively.

Best Time to Visit Brussel
The most sunny months:
September 11 days
March 10 days
April 10 days
The most warm months:
August 75.8 °F
July 75.0 °F
June 72.0 °F
Warmest sea temperature:
August 70.2 °F
July 68.8 °F
September 66.7 °F
The most cold months:
January 40.8 °F
December 43.8 °F
February 44.0 °F
The most rainy months:
December 5 days
June 5 days
May 5 days
The most windy months:
December 12 mph
February 11 mph
January 11 mph

Brussel on the Weather Map

Belgium Resorts:
NAME
Antwerpen +52
Brugge +52
Brussel +50
Charleroi +50
Gent +52
Kortrijk +52
Liege +50
Namur +48
Oostende +50
24 Hours Weather Forecast
Brussel
Local time: 10:39
21 apr, tuesday
1200 50°F
W
12 mph
1500 54°F
W
12 mph
1800 54°F
W
9 mph
2100 50°F
SW
12 mph
22 apr, wednesday
0000 46°F
SW
10 mph
0300 42°F
SW
9 mph
0600 38°F
SW
10 mph
0900 46°F
W
13 mph