S
M
T
W
T
F
S
30
65°
47°
31
66°
51°
1
69°
52°
2
70°
53°
3
70°
47°
4
69°
46°
5
65°
46°
6
68°
44°
7
64°
44°
8
63°
45°
9
65°
51°
10
67°
46°
11
68°
44°
12
65°
46°
13
63°
43°
14
64°
45°
15
64°
49°
16
66°
47°
17
66°
44°
18
Hist. Avg.
59°
49°
19
Hist. Avg.
59°
49°
20
Hist. Avg.
58°
48°
21
Hist. Avg.
58°
48°
22
Hist. Avg.
58°
48°
23
Hist. Avg.
58°
47°
24
Hist. Avg.
57°
47°
25
Hist. Avg.
57°
47°
26
Hist. Avg.
57°
46°
27
Hist. Avg.
56°
46°
28
Hist. Avg.
56°
46°
29
Hist. Avg.
56°
45°
30
Hist. Avg.
55°
45°
1
Hist. Avg.
55°
45°
2
Hist. Avg.
55°
45°
3
Hist. Avg.
55°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Long Harbour
Long Harbour's September 2026 forecast shows daily high temperatures ranging from 63° to 70°, with overnight lows between 43° and 53°. The average high for September is 66° 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 Long Harbour. See also: October | November | December.
