S
M
T
W
T
F
S
30
83°
58°
31
65°
51°
1
67°
48°
2
68°
46°
3
70°
60°
4
64°
57°
5
60°
53°
6
60°
54°
7
65°
51°
8
64°
49°
9
63°
55°
10
64°
52°
11
62°
50°
12
66°
53°
13
66°
50°
14
65°
54°
15
69°
55°
16
70°
41°
17
67°
53°
18
64°
52°
19
67°
52°
20
62°
51°
21
65°
52°
22
66°
52°
23
66°
51°
24
65°
51°
25
62°
50°
26
65°
51°
27
65°
52°
28
63°
50°
29
64°
49°
30
62°
49°
1
63°
48°
2
59°
48°
3
56°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Charlottetown
Charlottetown's September 2026 forecast shows daily high temperatures ranging from 56° to 70°, with overnight lows between 41° and 60°. The average high for September is 64° with an average low of 51°. 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 Charlottetown. See also: October | November | December.
