S
M
T
W
T
F
S
30
82°
65°
31
84°
67°
1
86°
68°
2
87°
68°
3
87°
65°
4
86°
60°
5
80°
60°
6
80°
63°
7
82°
65°
8
84°
66°
9
85°
64°
10
81°
65°
11
85°
64°
12
85°
66°
13
84°
65°
14
84°
65°
15
85°
64°
16
85°
64°
17
84°
65°
18
83°
60°
19
82°
58°
20
80°
55°
21
76°
55°
22
75°
61°
23
77°
58°
24
81°
54°
25
74°
54°
26
75°
55°
27
74°
54°
28
79°
57°
29
78°
58°
30
78°
58°
1
79°
59°
2
78°
58°
3
73°
58°
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 73° to 87°, with overnight lows between 54° and 68°. The average high for September is 81° 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 Chesapeake Beach. See also: October | November | December.
