S
M
T
W
T
F
S
30
73°
63°
31
72°
59°
1
72°
57°
2
70°
63°
3
79°
66°
4
70°
59°
5
N/A
6
82°
64°
7
78°
59°
8
73°
52°
9
71°
53°
10
70°
60°
11
69°
54°
12
68°
54°
13
69°
55°
14
70°
56°
15
71°
56°
16
72°
55°
17
71°
54°
18
65°
46°
19
66°
45°
20
68°
51°
21
69°
51°
22
69°
50°
23
68°
50°
24
68°
49°
25
67°
47°
26
66°
47°
27
65°
46°
28
66°
48°
29
65°
46°
30
66°
47°
1
65°
42°
2
65°
48°
3
66°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sidcup
Sidcup's September 2026 forecast shows daily high temperatures ranging from 65° to 82°, with overnight lows between 42° and 64°. The average high for September is 69° with an average low of 51°. 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 Sidcup. See also: October | November | December.
