S
M
T
W
T
F
S
30
82°
66°
31
87°
66°
1
90°
73°
2
95°
73°
3
95°
70°
4
87°
68°
5
81°
67°
6
78°
58°
7
79°
57°
8
84°
55°
9
81°
66°
10
80°
59°
11
79°
55°
12
83°
61°
13
79°
55°
14
71°
44°
15
90°
55°
16
78°
68°
17
77°
61°
18
75°
56°
19
79°
65°
20
70°
58°
21
73°
58°
22
74°
54°
23
77°
57°
24
72°
52°
25
74°
53°
26
76°
52°
27
77°
55°
28
79°
53°
29
76°
47°
30
76°
54°
1
75°
52°
2
71°
52°
3
65°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Antwerp
Antwerp's September 2026 forecast shows daily high temperatures ranging from 65° to 79°, with overnight lows between 47° and 68°. The average high for September is 75° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Antwerp. See also: October | November | December.