S
M
T
W
T
F
S
30
82°
66°
31
85°
70°
1
91°
75°
2
93°
73°
3
93°
72°
4
84°
69°
5
80°
65°
6
77°
58°
7
78°
55°
8
84°
70°
9
87°
67°
10
75°
55°
11
79°
60°
12
82°
63°
13
83°
64°
14
83°
66°
15
77°
59°
16
74°
54°
17
78°
56°
18
77°
54°
19
74°
55°
20
73°
52°
21
78°
57°
22
69°
57°
23
71°
56°
24
77°
57°
25
78°
57°
26
78°
56°
27
77°
56°
28
78°
58°
29
78°
58°
30
77°
57°
1
78°
55°
2
74°
49°
3
63°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bluffton
Bluffton's September 2026 forecast shows daily high temperatures ranging from 63° to 87°, with overnight lows between 45° and 70°. The average high for September is 77° with an average low of 57°. 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 Bluffton. See also: October | November | December.
