S
M
T
W
T
F
S
30
86°
70°
31
84°
74°
1
93°
75°
2
83°
73°
3
90°
74°
4
88°
72°
5
80°
71°
6
80°
69°
7
80°
67°
8
82°
64°
9
87°
70°
10
88°
74°
11
79°
70°
12
80°
71°
13
84°
74°
14
79°
69°
15
76°
64°
16
79°
63°
17
83°
71°
18
83°
73°
19
79°
69°
20
84°
72°
21
74°
65°
22
66°
60°
23
68°
57°
24
65°
57°
25
73°
58°
26
68°
59°
27
62°
60°
28
70°
63°
29
73°
60°
30
76°
64°
1
81°
66°
2
83°
56°
3
69°
56°
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 62° to 83°, with overnight lows between 56° and 66°. The average high for September is 73° 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.
