S
M
T
W
T
F
S
30
79°
62°
31
83°
64°
1
85°
57°
2
83°
58°
3
78°
57°
4
79°
58°
5
78°
64°
6
82°
63°
7
85°
61°
8
78°
63°
9
77°
63°
10
80°
62°
11
81°
61°
12
80°
61°
13
78°
60°
14
75°
55°
15
75°
55°
16
74°
54°
17
74°
55°
18
75°
59°
19
77°
59°
20
78°
60°
21
79°
56°
22
76°
52°
23
73°
57°
24
72°
59°
25
78°
52°
26
70°
56°
27
76°
56°
28
77°
55°
29
71°
56°
30
Hist. Avg.
71°
54°
1
Hist. Avg.
71°
53°
2
Hist. Avg.
70°
53°
3
Hist. Avg.
70°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Union Beach
Union Beach's September 2026 forecast shows daily high temperatures ranging from 70° to 85°, with overnight lows between 52° and 64°. The average high for September is 78° with an average low of 58°. 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 Union Beach. See also: October | November | December.
