S
M
T
W
T
F
S
30
67°
50°
31
72°
51°
1
80°
53°
2
83°
63°
3
84°
63°
4
82°
56°
5
90°
58°
6
90°
60°
7
72°
57°
8
73°
53°
9
65°
50°
10
66°
51°
11
67°
51°
12
70°
51°
13
75°
55°
14
82°
57°
15
82°
58°
16
73°
53°
17
63°
49°
18
73°
48°
19
85°
54°
20
89°
60°
21
N/A
22
63°
62°
23
70°
62°
24
73°
60°
25
78°
61°
26
84°
63°
27
68°
60°
28
75°
58°
29
78°
61°
30
68°
60°
1
75°
59°
2
69°
61°
3
70°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Chatswood
Chatswood's September 2026 forecast shows daily high temperatures ranging from 63° to 84°, with overnight lows between 58° and 63°. The average high for September is 73° with an average low of 61°. 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 Chatswood. See also: October | November | December.
