S
M
T
W
T
F
S
30
83°
58°
31
75°
57°
1
68°
60°
2
70°
62°
3
73°
63°
4
83°
64°
5
72°
60°
6
68°
55°
7
77°
60°
8
77°
59°
9
73°
68°
10
81°
59°
11
72°
48°
12
73°
54°
13
75°
58°
14
78°
57°
15
73°
52°
16
72°
50°
17
69°
51°
18
69°
52°
19
68°
49°
20
72°
53°
21
66°
53°
22
64°
52°
23
65°
53°
24
69°
52°
25
67°
52°
26
70°
51°
27
64°
48°
28
66°
50°
29
71°
51°
30
71°
51°
1
70°
50°
2
69°
51°
3
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hampton Beach
Hampton Beach's September 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 48° and 68°. The average high for September is 71° with an average low of 53°. 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 Beach. See also: October | November | December.