S
M
T
W
T
F
S
30
67°
53°
31
68°
55°
1
67°
55°
2
69°
54°
3
67°
53°
4
67°
53°
5
68°
55°
6
66°
50°
7
68°
53°
8
67°
54°
9
69°
55°
10
70°
52°
11
67°
55°
12
66°
51°
13
69°
54°
14
69°
52°
15
68°
48°
16
64°
50°
17
67°
48°
18
67°
53°
19
68°
54°
20
68°
55°
21
67°
54°
22
68°
53°
23
66°
53°
24
65°
52°
25
65°
52°
26
64°
51°
27
65°
52°
28
64°
51°
29
66°
50°
30
60°
45°
1
61°
52°
2
60°
49°
3
Hist. Avg.
60°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Martlesham
Martlesham's September 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 45° and 55°. The average high for September is 66° with an average low of 52°. 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 Martlesham. See also: October | November | December.
