S
M
T
W
T
F
S
30
85°
68°
31
84°
61°
1
81°
60°
2
78°
62°
3
78°
61°
4
79°
61°
5
77°
62°
6
77°
60°
7
78°
60°
8
77°
61°
9
77°
62°
10
75°
60°
11
77°
60°
12
78°
62°
13
76°
61°
14
78°
60°
15
75°
59°
16
75°
57°
17
73°
58°
18
74°
59°
19
76°
62°
20
Hist. Avg.
73°
58°
21
Hist. Avg.
73°
58°
22
Hist. Avg.
73°
58°
23
Hist. Avg.
72°
57°
24
Hist. Avg.
72°
57°
25
Hist. Avg.
72°
56°
26
Hist. Avg.
71°
56°
27
Hist. Avg.
71°
56°
28
Hist. Avg.
70°
55°
29
Hist. Avg.
70°
55°
30
Hist. Avg.
70°
54°
1
Hist. Avg.
69°
54°
2
Hist. Avg.
69°
54°
3
Hist. Avg.
69°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Seaford
Seaford's September 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 57° and 68°. The average high for September is 78° with an average low of 61°. 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 Seaford. See also: October | November | December.
