World Resorts Belgium Brussel Weather

Brussel Sea Temperature in September

Average sea water temperature in September:
+65.0°F
Minimum sea water temperature in September: 71.2°F
Maximum sea water temperature in September: 59.5°F

Daily 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.

Monthly sea water temperature in Brussel, °F

Which Belgium resorts have warmest sea in September?

Place name September 2025 September 2024
Brussel 65.0°F 66.2°F
Antwerpen 64.9°F 66.4°F
Gent 64.7°F 66.1°F
Kortrijk 64.0°F 64.9°F
Oostende 64.0°F 65.0°F
Brugge 63.7°F 65.2°F

Best time for vacation in Brussel

Sunniest months:
September 11 days
March 10 days
April 10 days
Warmest months:
August 73.2 °F
July 72.5 °F
June 69.8 °F
Warmest sea temp:
August 68.1 °F
July 66.9 °F
September 65.0 °F
Coldest months:
January 41.8 °F
February 44.4 °F
December 44.5 °F
Rainiest months:
December 5 days
June 5 days
May 5 days
Windiest months:
December 11.9 mph
February 11.8 mph
January 11.4 mph

Brussel on a weather map

Current weather
18:06
Brussel
+39°F
S 8 mph
Feels like: +32°F
Precip.: 0%
Places in Belgium:
Name
°F
Antwerpen
+41°F
Brugge
+45°F
Brussel
+39°F
Gent
+43°F
Kortrijk
+43°F
Liege
+37°F
Namur
+36°F
Oostende
+45°F
Charleroi
+36°F
24 Hours Forecast
Brussel
Local time: 18:06
December 29, monday
2100
39°F
S
8 mph
December 30, tuesday
0000
41°F
S
10 mph
0300
41°F
S
14 mph
0600
36°F
S
7 mph
0900
34°F
SW
9 mph
1200
37°F
SW
6 mph
1500
39°F
S
7 mph
1800
34°F
SW
4 mph
Units of measurement: °C / °F