S
M
T
W
T
F
S
30
80°
60°
31
83°
60°
1
84°
53°
2
83°
52°
3
81°
58°
4
83°
58°
5
78°
57°
6
78°
57°
7
75°
56°
8
79°
50°
9
75°
48°
10
73°
57°
11
76°
56°
12
80°
55°
13
80°
57°
14
79°
56°
15
79°
57°
16
Hist. Avg.
73°
57°
17
Hist. Avg.
73°
56°
18
Hist. Avg.
72°
56°
19
Hist. Avg.
72°
56°
20
Hist. Avg.
72°
55°
21
Hist. Avg.
71°
55°
22
Hist. Avg.
71°
55°
23
Hist. Avg.
71°
54°
24
Hist. Avg.
70°
54°
25
Hist. Avg.
70°
54°
26
Hist. Avg.
69°
53°
27
Hist. Avg.
69°
53°
28
Hist. Avg.
68°
52°
29
Hist. Avg.
68°
52°
30
Hist. Avg.
68°
52°
1
Hist. Avg.
67°
51°
2
Hist. Avg.
67°
51°
3
Hist. Avg.
66°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Avalon Beach
Avalon Beach's September 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 48° and 60°. The average high for September is 79° with an average low of 56°. 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 Avalon Beach. See also: October | November | December.