S
M
T
W
T
F
S
30
78°
56°
31
77°
55°
1
78°
54°
2
76°
56°
3
73°
54°
4
77°
50°
5
70°
49°
6
70°
55°
7
74°
55°
8
75°
53°
9
76°
54°
10
75°
53°
11
74°
52°
12
74°
48°
13
73°
53°
14
73°
53°
15
72°
51°
16
73°
48°
17
67°
48°
18
68°
52°
19
72°
50°
20
71°
50°
21
71°
48°
22
64°
47°
23
67°
49°
24
69°
47°
25
65°
47°
26
63°
43°
27
62°
48°
28
67°
46°
29
66°
43°
30
61°
41°
1
62°
44°
2
62°
41°
3
60°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rose Bay
Rose Bay's September 2026 forecast shows daily high temperatures ranging from 60° to 78°, with overnight lows between 41° and 56°. The average high for September is 70° 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 Rose Bay. See also: October | November | December.
