S
M
T
W
T
F
S
30
80°
61°
31
82°
61°
1
84°
60°
2
79°
57°
3
78°
57°
4
79°
58°
5
83°
58°
6
84°
59°
7
84°
60°
8
85°
60°
9
84°
59°
10
82°
57°
11
82°
59°
12
84°
60°
13
84°
59°
14
77°
47°
15
72°
49°
16
74°
54°
17
75°
53°
18
71°
46°
19
72°
47°
20
75°
48°
21
76°
53°
22
78°
53°
23
79°
44°
24
71°
44°
25
71°
51°
26
75°
53°
27
76°
51°
28
77°
43°
29
68°
42°
30
67°
42°
1
67°
48°
2
74°
50°
3
75°
50°
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 67° to 85°, with overnight lows between 42° and 61°. The average high for September is 77° with an average low of 53°. 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.