S
M
T
W
T
F
S
30
73°
55°
31
72°
55°
1
70°
49°
2
71°
50°
3
71°
51°
4
68°
55°
5
71°
54°
6
71°
50°
7
70°
49°
8
65°
51°
9
66°
53°
10
67°
54°
11
69°
53°
12
69°
53°
13
68°
52°
14
68°
51°
15
67°
51°
16
68°
50°
17
66°
50°
18
66°
46°
19
67°
46°
20
65°
49°
21
66°
49°
22
65°
44°
23
66°
44°
24
63°
47°
25
64°
48°
26
60°
45°
27
63°
47°
28
62°
45°
29
61°
49°
30
Hist. Avg.
60°
44°
1
Hist. Avg.
60°
43°
2
Hist. Avg.
59°
43°
3
Hist. Avg.
59°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sydney
Sydney's September 2026 forecast shows daily high temperatures ranging from 60° to 73°, with overnight lows between 44° and 55°. The average high for September is 67° with an average low of 50°. 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 Sydney. See also: October | November | December.
