S
M
T
W
T
F
S
30
84°
75°
31
84°
73°
1
88°
77°
2
88°
75°
3
88°
77°
4
86°
79°
5
88°
77°
6
90°
75°
7
84°
75°
8
82°
75°
9
84°
77°
10
88°
79°
11
88°
75°
12
88°
75°
13
88°
77°
14
93°
76°
15
85°
72°
16
84°
71°
17
84°
71°
18
85°
72°
19
85°
72°
20
84°
71°
21
81°
68°
22
83°
69°
23
81°
65°
24
83°
67°
25
81°
68°
26
82°
67°
27
79°
69°
28
83°
70°
29
81°
69°
30
83°
69°
1
81°
67°
2
80°
66°
3
84°
68°
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 79° to 93°, with overnight lows between 65° and 76°. The average high for September is 83° with an average low of 69°. 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.
