S
M
T
W
T
F
S
30
44°
40°
31
51°
36°
1
48°
34°
2
45°
37°
3
51°
38°
4
50°
40°
5
51°
36°
6
50°
35°
7
44°
36°
8
42°
32°
9
42°
29°
10
41°
33°
11
40°
31°
12
49°
26°
13
40°
32°
14
39°
29°
15
40°
30°
16
39°
27°
17
37°
26°
18
35°
24°
19
41°
32°
20
37°
27°
21
42°
33°
22
Hist. Avg.
34°
25°
23
Hist. Avg.
33°
24°
24
Hist. Avg.
33°
24°
25
Hist. Avg.
32°
23°
26
Hist. Avg.
32°
22°
27
Hist. Avg.
31°
22°
28
Hist. Avg.
30°
21°
29
Hist. Avg.
30°
20°
30
Hist. Avg.
29°
20°
1
Hist. Avg.
29°
19°
2
Hist. Avg.
28°
18°
3
Hist. Avg.
27°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Perry Island
Perry Island's September 2026 forecast shows daily high temperatures ranging from 35° to 51°, with overnight lows between 24° and 40°. The average high for September is 43° with an average low of 32°. 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 Perry Island. See also: October | November | December.