S
M
T
W
T
F
S
30
86°
70°
31
85°
70°
1
86°
69°
2
86°
66°
3
85°
70°
4
86°
71°
5
86°
70°
6
87°
70°
7
86°
69°
8
86°
70°
9
84°
70°
10
85°
69°
11
86°
70°
12
85°
69°
13
85°
70°
14
86°
69°
15
85°
71°
16
87°
70°
17
86°
70°
18
Hist. Avg.
87°
69°
19
Hist. Avg.
87°
69°
20
Hist. Avg.
87°
69°
21
Hist. Avg.
87°
69°
22
Hist. Avg.
87°
69°
23
Hist. Avg.
87°
69°
24
Hist. Avg.
87°
69°
25
Hist. Avg.
87°
69°
26
Hist. Avg.
87°
69°
27
Hist. Avg.
87°
69°
28
Hist. Avg.
87°
69°
29
Hist. Avg.
87°
69°
30
Hist. Avg.
87°
69°
1
Hist. Avg.
87°
69°
2
Hist. Avg.
87°
69°
3
Hist. Avg.
87°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Kihei
Kihei's September 2026 forecast shows daily high temperatures ranging from 84° to 87°, with overnight lows between 66° and 71°. The average high for September is 86° with an average low of 70°. 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.