S
M
T
W
T
F
S
30
70°
48°
31
74°
52°
1
78°
57°
2
80°
57°
3
79°
56°
4
69°
46°
5
70°
47°
6
69°
49°
7
73°
49°
8
74°
56°
9
71°
48°
10
71°
47°
11
70°
49°
12
71°
55°
13
69°
47°
14
67°
45°
15
67°
46°
16
68°
47°
17
68°
48°
18
70°
47°
19
76°
51°
20
76°
46°
21
68°
48°
22
68°
47°
23
64°
46°
24
65°
45°
25
62°
42°
26
65°
43°
27
64°
45°
28
66°
50°
29
70°
48°
30
62°
44°
1
73°
54°
2
Hist. Avg.
66°
50°
3
Hist. Avg.
65°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Adelaide
Adelaide's September 2026 forecast shows daily high temperatures ranging from 62° to 80°, with overnight lows between 42° and 57°. The average high for September is 70° with an average low of 49°. 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 Adelaide. See also: October | November | December.
