S
M
T
W
T
F
S
30
87°
74°
31
87°
75°
1
87°
74°
2
90°
75°
3
87°
74°
4
87°
75°
5
88°
74°
6
87°
74°
7
90°
78°
8
87°
78°
9
87°
75°
10
85°
76°
11
85°
73°
12
86°
71°
13
86°
71°
14
86°
71°
15
87°
74°
16
89°
76°
17
87°
79°
18
90°
77°
19
88°
77°
20
89°
76°
21
90°
75°
22
89°
77°
23
88°
76°
24
87°
76°
25
83°
74°
26
85°
73°
27
83°
71°
28
84°
70°
29
83°
69°
30
84°
70°
1
86°
71°
2
85°
68°
3
83°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kihei
Kihei's September 2026 forecast shows daily high temperatures ranging from 83° to 90°, with overnight lows between 68° and 77°. The average high for September is 86° with an average low of 73°. 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 Kihei. See also: October | November | December.
