S
M
T
W
T
F
S
30
75°
48°
31
70°
54°
1
67°
46°
2
67°
46°
3
71°
49°
4
64°
58°
5
59°
55°
6
60°
55°
7
64°
53°
8
65°
50°
9
62°
49°
10
64°
48°
11
62°
47°
12
62°
47°
13
67°
47°
14
76°
56°
15
64°
43°
16
73°
40°
17
69°
51°
18
64°
49°
19
58°
47°
20
56°
39°
21
62°
44°
22
61°
44°
23
60°
38°
24
69°
36°
25
70°
42°
26
62°
44°
27
61°
45°
28
60°
41°
29
59°
52°
30
64°
55°
1
68°
55°
2
72°
54°
3
63°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sydney
Sydney's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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.
