S
M
T
W
T
F
S
30
66°
58°
31
59°
51°
1
62°
50°
2
63°
46°
3
64°
46°
4
65°
49°
5
55°
47°
6
58°
47°
7
59°
51°
8
54°
45°
9
55°
46°
10
60°
55°
11
58°
47°
12
55°
44°
13
62°
54°
14
63°
51°
15
62°
50°
16
62°
50°
17
59°
49°
18
59°
51°
19
58°
51°
20
60°
40°
21
54°
47°
22
54°
46°
23
54°
47°
24
54°
46°
25
52°
46°
26
53°
40°
27
51°
39°
28
51°
45°
29
55°
45°
30
57°
46°
1
58°
46°
2
58°
45°
3
57°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rocky Harbour
Rocky Harbour's September 2026 forecast shows daily high temperatures ranging from 51° to 63°, with overnight lows between 39° and 55°. The average high for September is 57° 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 Rocky Harbour. See also: October | November | December.
