S
M
T
W
T
F
S
30
76°
48°
31
68°
45°
1
65°
48°
2
66°
45°
3
64°
46°
4
66°
46°
5
64°
47°
6
66°
49°
7
69°
53°
8
67°
49°
9
66°
48°
10
66°
48°
11
65°
51°
12
68°
51°
13
67°
50°
14
70°
48°
15
64°
45°
16
64°
41°
17
62°
48°
18
67°
50°
19
61°
45°
20
70°
49°
21
69°
49°
22
Hist. Avg.
60°
43°
23
Hist. Avg.
60°
42°
24
Hist. Avg.
59°
42°
25
Hist. Avg.
59°
42°
26
Hist. Avg.
58°
41°
27
Hist. Avg.
58°
41°
28
Hist. Avg.
58°
41°
29
Hist. Avg.
57°
40°
30
Hist. Avg.
57°
40°
1
Hist. Avg.
56°
40°
2
Hist. Avg.
56°
39°
3
Hist. Avg.
55°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Hartley Bay
Hartley Bay's September 2026 forecast shows daily high temperatures ranging from 61° to 76°, with overnight lows between 41° and 53°. The average high for September is 67° with an average low of 48°. 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.
