S
M
T
W
T
F
S
30
80°
52°
31
76°
66°
1
77°
66°
2
73°
65°
3
83°
70°
4
84°
63°
5
79°
59°
6
72°
52°
7
79°
47°
8
80°
52°
9
79°
55°
10
86°
66°
11
77°
53°
12
75°
61°
13
77°
67°
14
75°
47°
15
72°
53°
16
76°
57°
17
78°
64°
18
75°
62°
19
72°
60°
20
70°
53°
21
69°
53°
22
71°
54°
23
71°
55°
24
70°
53°
25
71°
47°
26
65°
48°
27
66°
54°
28
73°
54°
29
73°
51°
30
66°
49°
1
65°
48°
2
68°
52°
3
71°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hampton Bays
Hampton Bays's September 2026 forecast shows daily high temperatures ranging from 65° to 78°, with overnight lows between 47° and 67°. The average high for September is 71° with an average low of 54°. 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 Hampton Bays. See also: October | November | December.
