S
M
T
W
T
F
S
30
73°
54°
31
72°
53°
1
72°
56°
2
73°
60°
3
73°
62°
4
80°
62°
5
81°
61°
6
80°
54°
7
79°
53°
8
73°
54°
9
72°
53°
10
71°
55°
11
70°
57°
12
70°
54°
13
74°
54°
14
73°
57°
15
72°
58°
16
70°
57°
17
73°
56°
18
74°
55°
19
74°
50°
20
73°
54°
21
71°
50°
22
74°
48°
23
68°
48°
24
67°
50°
25
67°
50°
26
66°
48°
27
67°
48°
28
66°
50°
29
65°
46°
30
66°
46°
1
64°
50°
2
70°
48°
3
70°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Aquinnah
Aquinnah's September 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 46° and 62°. The average high for September is 72° with an average low of 53°. 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 Aquinnah. See also: October | November | December.
