S
M
T
W
T
F
S
30
90°
72°
31
89°
72°
1
90°
73°
2
90°
69°
3
89°
72°
4
90°
73°
5
90°
73°
6
89°
72°
7
90°
73°
8
90°
72°
9
91°
72°
10
89°
71°
11
90°
72°
12
89°
71°
13
88°
72°
14
89°
71°
15
89°
71°
16
91°
72°
17
91°
73°
18
Hist. Avg.
90°
71°
19
Hist. Avg.
90°
71°
20
Hist. Avg.
90°
71°
21
Hist. Avg.
90°
71°
22
Hist. Avg.
90°
71°
23
Hist. Avg.
90°
71°
24
Hist. Avg.
90°
71°
25
Hist. Avg.
90°
71°
26
Hist. Avg.
90°
71°
27
Hist. Avg.
90°
71°
28
Hist. Avg.
90°
71°
29
Hist. Avg.
90°
71°
30
Hist. Avg.
90°
71°
1
Hist. Avg.
90°
71°
2
Hist. Avg.
90°
71°
3
Hist. Avg.
90°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Kahului
Kahului's September 2026 forecast shows daily high temperatures ranging from 88° to 91°, with overnight lows between 69° and 73°. The average high for September is 90° with an average low of 72°. 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 Kahului. See also: October | November | December.
