S
M
T
W
T
F
S
30
87°
72°
31
87°
74°
1
88°
73°
2
89°
74°
3
88°
73°
4
86°
74°
5
87°
72°
6
86°
73°
7
88°
74°
8
87°
77°
9
86°
74°
10
87°
75°
11
85°
73°
12
84°
72°
13
85°
73°
14
88°
74°
15
87°
75°
16
88°
76°
17
87°
75°
18
88°
76°
19
87°
73°
20
86°
74°
21
88°
73°
22
87°
73°
23
85°
74°
24
87°
72°
25
84°
75°
26
84°
75°
27
85°
74°
28
84°
75°
29
84°
75°
30
85°
74°
1
84°
74°
2
84°
75°
3
85°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kapalua
Kapalua's September 2026 forecast shows daily high temperatures ranging from 84° to 88°, with overnight lows between 72° and 76°. The average high for September is 86° with an average low of 74°. 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 Kapalua. See also: October | November | December.