S
M
T
W
T
F
S
30
81°
63°
31
80°
70°
1
87°
69°
2
73°
66°
3
89°
69°
4
88°
75°
5
82°
68°
6
77°
65°
7
81°
62°
8
82°
60°
9
87°
65°
10
89°
72°
11
83°
65°
12
80°
60°
13
83°
68°
14
76°
60°
15
74°
55°
16
81°
60°
17
82°
71°
18
83°
62°
19
70°
65°
20
72°
63°
21
70°
60°
22
65°
57°
23
68°
59°
24
70°
62°
25
72°
60°
26
73°
57°
27
75°
63°
28
74°
60°
29
73°
61°
30
75°
56°
1
68°
57°
2
74°
61°
3
67°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sea Gate
Sea Gate's September 2026 forecast shows daily high temperatures ranging from 65° to 83°, with overnight lows between 56° and 71°. The average high for September is 72° 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 Sea Gate. See also: October | November | December.