17.05
sun
sun
Day
57°F
NE 16 mph
Precip.
100%
100%
Night
50°F
N 7 mph
Precip.
100%
100%
18.05
mon
mon
Day
57°F
NE 12 mph
Precip.
100%
100%
Night
45°F
N 7 mph
Precip.
0%
0%
19.05
tue
tue
Day
50°F
N 13 mph
Precip.
100%
100%
Night
52°F
NE 11 mph
Precip.
0%
0%
20.05
wed
wed
Day
63°F
NE 15 mph
Precip.
73%
73%
Night
54°F
NE 7 mph
Precip.
0%
0%
21.05
thu
thu
Day
68°F
NE 7 mph
Precip.
0%
0%
Night
59°F
NW 4 mph
Precip.
0%
0%
22.05
fri
fri
Day
73°F
NW 6 mph
Precip.
0%
0%
Night
64°F
NW 2 mph
Precip.
0%
0%
23.05
sat
sat
Day
77°F
W 3 mph
Precip.
0%
0%
Night
66°F
SW 7 mph
Precip.
0%
0%
24.05
sun
sun
Day
73°F
W 12 mph
Precip.
0%
0%
Night
63°F
W 13 mph
Precip.
0%
0%
25.05
mon
mon
Day
63°F
NE 9 mph
Precip.
100%
100%
Night
59°F
NE 4 mph
Precip.
0%
0%
26.05
tue
tue
Day
66°F
E 9 mph
Precip.
100%
100%
Night
55°F
E 6 mph
Precip.
0%
0%
27.05
wed
wed
Day
64°F
SE 9 mph
Precip.
0%
0%
Night
54°F
E 3 mph
Precip.
0%
0%
28.05
thu
thu
Day
66°F
NE 14 mph
Precip.
0%
0%
Night
57°F
NE 6 mph
Precip.
0%
0%
29.05
fri
fri
Day
61°F
NW 9 mph
Precip.
28%
28%
Night
52°F
E 6 mph
Precip.
0%
0%
30.05
sat
sat
Day
61°F
E 5 mph
Precip.
0%
0%
Night
63°F
N 3 mph
Precip.
0%
0%
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 55.7°F. The highest and lowest sea temperatures during the month were 57.4°F and 52.9°F.
Air temperature in Brussel, °F
Precipitation total in Brussel, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Brussel
Brussel on a weather map
Places in Belgium:
Name
°F
24 Hours Forecast
Brussel
Local time: 17:20
May 17, sunday
1800
52°F
N
9 mph
9 mph
2100
52°F
N
8 mph
8 mph
May 18, monday
0000
50°F
N
7 mph
7 mph
0300
48°F
NE
6 mph
6 mph
0600
46°F
NE
7 mph
7 mph
0900
50°F
NE
9 mph
9 mph
1200
57°F
NE
12 mph
12 mph
1500
54°F
NE
12 mph
12 mph
