S
M
T
W
T
F
S
30
87°
71°
31
86°
70°
1
87°
71°
2
87°
67°
3
86°
71°
4
87°
71°
5
87°
70°
6
86°
71°
7
87°
71°
8
87°
70°
9
88°
71°
10
86°
70°
11
87°
71°
12
86°
70°
13
85°
71°
14
86°
70°
15
86°
70°
16
87°
71°
17
Hist. Avg.
86°
71°
18
Hist. Avg.
86°
71°
19
Hist. Avg.
86°
71°
20
Hist. Avg.
86°
71°
21
Hist. Avg.
86°
71°
22
Hist. Avg.
86°
71°
23
Hist. Avg.
86°
71°
24
Hist. Avg.
85°
71°
25
Hist. Avg.
85°
71°
26
Hist. Avg.
85°
71°
27
Hist. Avg.
85°
71°
28
Hist. Avg.
85°
71°
29
Hist. Avg.
85°
71°
30
Hist. Avg.
85°
71°
1
Hist. Avg.
85°
71°
2
Hist. Avg.
85°
71°
3
Hist. Avg.
85°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Kualapu'u
Kualapu'u's September 2026 forecast shows daily high temperatures ranging from 85° to 88°, with overnight lows between 67° and 71°. The average high for September is 87° 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 Kualapu'u. See also: October | November | December.
