S
M
T
W
T
F
S
30
75°
49°
31
72°
46°
1
69°
48°
2
69°
46°
3
68°
46°
4
69°
47°
5
69°
47°
6
68°
49°
7
70°
54°
8
69°
48°
9
68°
47°
10
69°
46°
11
68°
49°
12
68°
48°
13
67°
49°
14
68°
48°
15
66°
47°
16
66°
44°
17
65°
43°
18
66°
44°
19
65°
51°
20
73°
50°
21
63°
43°
22
62°
40°
23
Hist. Avg.
66°
45°
24
Hist. Avg.
66°
45°
25
Hist. Avg.
65°
45°
26
Hist. Avg.
65°
44°
27
Hist. Avg.
65°
44°
28
Hist. Avg.
64°
44°
29
Hist. Avg.
64°
44°
30
Hist. Avg.
64°
43°
1
Hist. Avg.
63°
43°
2
Hist. Avg.
63°
43°
3
Hist. Avg.
62°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Keswick Beach
Keswick Beach's September 2026 forecast shows daily high temperatures ranging from 62° to 75°, with overnight lows between 40° and 54°. The average high for September is 68° with an average low of 47°. 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 Keswick Beach. See also: October | November | December.