World Resorts Belgium Brussel Weather

Brussel sea water temperature

Current sea water temperature:
+68.2°F
Minimum sea water temperature in August: 73.8°F
Maximum sea water temperature in August: 64.0°F
Average sea water temperature in August: 68.3°F

Sea water temperature for the last 10 days:

August 26 68.2°F August 21 70.9°F
August 25 70.0°F August 20 71.2°F
August 24 70.7°F August 19 71.2°F
August 23 70.5°F August 18 71.2°F
August 22 70.7°F August 17 71.2°F

When is the warmest sea in Brussel?

Based on the data about daily sea water temperature for the last three years the warmest sea in Brussel was noticed in August, July and September.

Monthly Sea Temperatures in Brussel, °F

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 71.2°F. The highest and lowest sea temperatures during the month were 72.1°F and 68.2°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 71.0°F. The highest and lowest sea temperatures during the month were 72.3°F and 68.4°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 65.0°F. The highest and lowest sea temperatures during the month were 68.4°F and 61.2°F.

Best time for vacation in Brussel

Sunniest months:
September 11 days
March 10 days
April 10 days
Warmest months:
August 73.5 °F
July 72.9 °F
June 70.0 °F
Warmest sea temp:
August 68.3 °F
July 67.2 °F
September 65.0 °F
Coldest months:
January 41.7 °F
December 44.4 °F
February 44.6 °F
Rainiest months:
December 5 days
July 4 days
May 4 days
Windiest months:
December 11.9 mph
February 11.8 mph
January 11.3 mph

Brussel on a weather map

Brussel
+66°F
NW 8 mph
Feels like: +66°F
Precip.: 17%
Places in Belgium:
Name
°F
+68°F
+68°F
+66°F
+68°F
+70°F
+66°F
+68°F
+70°F
+68°F
24 Hours Forecast
Brussel
Local time: 02:19
August 27, thursday
0300
66°F
NW
8 mph
0600
66°F
W
8 mph
0900
66°F
W
6 mph
1200
73°F
NW
10 mph
1500
86°F
N
11 mph
1800
79°F
NE
4 mph
2100
73°F
N
6 mph
August 28, friday
0000
66°F
E
10 mph
Units of measurement: °C / °F