S
M
T
W
T
F
S
30
73°
58°
31
77°
64°
1
80°
62°
2
78°
56°
3
75°
56°
4
74°
57°
5
76°
58°
6
75°
58°
7
76°
57°
8
72°
54°
9
71°
54°
10
69°
49°
11
69°
48°
12
73°
55°
13
72°
54°
14
64°
52°
15
70°
54°
16
71°
52°
17
67°
50°
18
64°
50°
19
69°
52°
20
71°
53°
21
70°
53°
22
70°
52°
23
69°
51°
24
69°
50°
25
68°
51°
26
68°
50°
27
69°
51°
28
69°
48°
29
64°
47°
30
62°
46°
1
62°
48°
2
65°
49°
3
65°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hartley Bay
Hartley Bay's September 2026 forecast shows daily high temperatures ranging from 62° to 80°, with overnight lows between 46° and 64°. The average high for September is 70° 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 Hartley Bay. See also: October | November | December.
