S
M
T
W
T
F
S
30
87°
58°
31
78°
68°
1
90°
70°
2
75°
71°
3
86°
72°
4
84°
67°
5
81°
66°
6
75°
63°
7
79°
58°
8
83°
60°
9
82°
62°
10
87°
61°
11
83°
56°
12
81°
58°
13
83°
60°
14
79°
57°
15
80°
56°
16
74°
59°
17
74°
53°
18
72°
51°
19
78°
56°
20
79°
56°
21
76°
54°
22
76°
55°
23
72°
56°
24
76°
55°
25
73°
53°
26
76°
56°
27
74°
55°
28
75°
50°
29
68°
47°
30
68°
49°
1
67°
46°
2
67°
51°
3
65°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Seaside Heights
Seaside Heights's September 2026 forecast shows daily high temperatures ranging from 65° to 87°, with overnight lows between 46° and 72°. The average high for September is 77° with an average low of 57°. 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 Seaside Heights. See also: October | November | December.
