S
M
T
W
T
F
S
30
79°
60°
31
84°
66°
1
85°
67°
2
83°
65°
3
78°
61°
4
78°
58°
5
77°
57°
6
77°
57°
7
78°
64°
8
83°
57°
9
76°
56°
10
76°
56°
11
77°
52°
12
74°
55°
13
74°
54°
14
72°
53°
15
74°
54°
16
75°
55°
17
74°
53°
18
76°
53°
19
74°
52°
20
73°
51°
21
72°
51°
22
72°
52°
23
73°
55°
24
77°
51°
25
78°
55°
26
77°
56°
27
71°
53°
28
70°
51°
29
76°
49°
30
74°
47°
1
68°
50°
2
73°
56°
3
74°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Perth Amboy
Perth Amboy's September 2026 forecast shows daily high temperatures ranging from 68° to 85°, with overnight lows between 45° and 67°. The average high for September is 76° with an average low of 55°. 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 Perth Amboy. See also: October | November | December.
