S
M
T
W
T
F
S
30
88°
53°
31
79°
67°
1
92°
69°
2
75°
70°
3
88°
72°
4
88°
66°
5
83°
65°
6
74°
60°
7
79°
59°
8
82°
67°
9
83°
70°
10
86°
64°
11
76°
61°
12
78°
63°
13
78°
61°
14
79°
64°
15
83°
64°
16
82°
60°
17
74°
58°
18
71°
56°
19
78°
61°
20
78°
62°
21
76°
60°
22
76°
60°
23
72°
62°
24
76°
60°
25
73°
59°
26
75°
61°
27
75°
60°
28
74°
56°
29
67°
52°
30
68°
55°
1
67°
52°
2
66°
56°
3
65°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Barnegat
Barnegat's September 2026 forecast shows daily high temperatures ranging from 65° to 88°, with overnight lows between 52° and 72°. The average high for September is 76° 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 Barnegat. See also: October | November | December.