S
M
T
W
T
F
S
30
79°
49°
31
N/A
1
70°
63°
2
73°
64°
3
75°
65°
4
80°
62°
5
71°
57°
6
71°
57°
7
73°
59°
8
75°
60°
9
75°
61°
10
76°
59°
11
75°
59°
12
76°
58°
13
75°
56°
14
74°
53°
15
70°
56°
16
70°
55°
17
74°
55°
18
68°
52°
19
68°
55°
20
69°
55°
21
73°
56°
22
75°
57°
23
75°
56°
24
74°
55°
25
73°
54°
26
73°
54°
27
74°
55°
28
73°
54°
29
72°
52°
30
66°
49°
1
64°
50°
2
64°
52°
3
71°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Oak Bluffs
Oak Bluffs's September 2026 forecast shows daily high temperatures ranging from 64° to 80°, with overnight lows between 49° and 65°. The average high for September is 72° with an average low of 56°. 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 Oak Bluffs. See also: October | November | December.
