S
M
T
W
T
F
S
30
67°
53°
31
66°
52°
1
64°
50°
2
62°
49°
3
62°
48°
4
63°
49°
5
62°
52°
6
64°
53°
7
65°
52°
8
65°
50°
9
66°
52°
10
65°
52°
11
64°
51°
12
60°
50°
13
61°
51°
14
62°
47°
15
60°
46°
16
60°
47°
17
61°
48°
18
63°
47°
19
62°
46°
20
63°
48°
21
63°
49°
22
62°
48°
23
62°
48°
24
61°
49°
25
62°
47°
26
60°
47°
27
59°
49°
28
59°
49°
29
62°
51°
30
61°
51°
1
63°
50°
2
62°
48°
3
60°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Whitehaven
Whitehaven's September 2026 forecast shows daily high temperatures ranging from 59° to 67°, with overnight lows between 46° and 53°. The average high for September is 62° with an average low of 49°. 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 Whitehaven. See also: October | November | December.
