S
M
T
W
T
F
S
31
70°
54°
1
68°
55°
2
70°
54°
3
68°
55°
4
63°
48°
5
68°
45°
6
68°
48°
7
75°
57°
8
66°
48°
9
70°
43°
10
68°
52°
11
59°
50°
12
61°
48°
13
63°
48°
14
59°
45°
15
61°
55°
16
64°
50°
17
70°
52°
18
68°
55°
19
68°
63°
20
63°
48°
21
57°
43°
22
57°
34°
23
59°
37°
24
59°
41°
25
63°
39°
26
61°
41°
27
61°
50°
28
63°
45°
29
59°
37°
30
63°
48°
1
59°
52°
2
63°
55°
3
64°
54°
4
57°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Seaham
Seaham's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Seaham. See also: October | November | December.
