S
M
T
W
T
F
S
30
87°
68°
31
87°
68°
1
86°
67°
2
85°
67°
3
79°
64°
4
79°
61°
5
78°
59°
6
78°
59°
7
79°
63°
8
85°
65°
9
82°
62°
10
80°
65°
11
79°
54°
12
76°
57°
13
76°
56°
14
77°
55°
15
76°
57°
16
77°
60°
17
76°
62°
18
80°
55°
19
82°
54°
20
74°
52°
21
73°
52°
22
73°
53°
23
74°
53°
24
78°
54°
25
78°
59°
26
77°
59°
27
74°
58°
28
74°
56°
29
76°
51°
30
77°
50°
1
71°
50°
2
76°
58°
3
72°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chesapeake Beach
Chesapeake Beach's September 2026 forecast shows daily high temperatures ranging from 71° to 87°, with overnight lows between 48° and 68°. 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 Chesapeake Beach. See also: October | November | December.
