S
M
T
W
T
F
S
30
79°
67°
31
80°
68°
1
84°
63°
2
79°
62°
3
79°
62°
4
80°
61°
5
78°
61°
6
81°
64°
7
82°
63°
8
79°
66°
9
83°
66°
10
78°
65°
11
80°
65°
12
82°
64°
13
82°
65°
14
81°
65°
15
82°
64°
16
82°
58°
17
79°
62°
18
73°
65°
19
79°
64°
20
81°
64°
21
80°
62°
22
79°
55°
23
76°
60°
24
75°
60°
25
Hist. Avg.
74°
57°
26
Hist. Avg.
74°
57°
27
Hist. Avg.
73°
56°
28
Hist. Avg.
73°
56°
29
Hist. Avg.
73°
56°
30
Hist. Avg.
72°
55°
1
Hist. Avg.
72°
55°
2
Hist. Avg.
71°
54°
3
Hist. Avg.
71°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Bayonne
Bayonne's September 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 55° and 68°. The average high for September is 80° 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 Bayonne. See also: October | November | December.