S
M
T
W
T
F
S
30
80°
61°
31
79°
69°
1
78°
67°
2
74°
65°
3
88°
69°
4
85°
73°
5
80°
68°
6
73°
61°
7
79°
57°
8
N/A
9
80°
71°
10
85°
68°
11
78°
63°
12
76°
68°
13
80°
68°
14
85°
66°
15
81°
67°
16
80°
64°
17
78°
62°
18
76°
61°
19
77°
58°
20
73°
60°
21
74°
59°
22
71°
63°
23
72°
62°
24
72°
62°
25
73°
60°
26
75°
61°
27
72°
56°
28
71°
61°
29
77°
62°
30
77°
62°
1
76°
61°
2
76°
62°
3
75°
59°
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 71° to 85°, with overnight lows between 56° and 71°. The average high for September is 76° with an average low of 63°. 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.
