S
M
T
W
T
F
S
30
64°
61°
31
65°
61°
1
65°
60°
2
66°
61°
3
67°
61°
4
67°
60°
5
66°
60°
6
65°
58°
7
66°
59°
8
64°
58°
9
64°
55°
10
63°
56°
11
62°
57°
12
65°
58°
13
63°
61°
14
65°
59°
15
Hist. Avg.
62°
52°
16
Hist. Avg.
62°
52°
17
Hist. Avg.
62°
52°
18
Hist. Avg.
61°
51°
19
Hist. Avg.
61°
51°
20
Hist. Avg.
61°
51°
21
Hist. Avg.
61°
51°
22
Hist. Avg.
61°
51°
23
Hist. Avg.
61°
51°
24
Hist. Avg.
61°
51°
25
Hist. Avg.
60°
51°
26
Hist. Avg.
60°
50°
27
Hist. Avg.
60°
50°
28
Hist. Avg.
60°
50°
29
Hist. Avg.
60°
50°
30
Hist. Avg.
60°
50°
1
Hist. Avg.
59°
50°
2
Hist. Avg.
59°
50°
3
Hist. Avg.
59°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Mousehole
Mousehole's September 2026 forecast shows daily high temperatures ranging from 62° to 67°, with overnight lows between 55° and 61°. The average high for September is 65° with an average low of 59°. 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 Mousehole. See also: October | November | December.
