S
M
T
W
T
F
S
30
85°
70°
31
81°
72°
1
84°
73°
2
85°
75°
3
80°
71°
4
83°
71°
5
85°
69°
6
82°
73°
7
83°
73°
8
89°
72°
9
85°
74°
10
81°
72°
11
83°
71°
12
84°
72°
13
84°
72°
14
83°
68°
15
86°
73°
16
85°
70°
17
85°
72°
18
84°
71°
19
85°
72°
20
86°
71°
21
86°
73°
22
82°
70°
23
81°
69°
24
80°
68°
25
81°
67°
26
83°
68°
27
81°
67°
28
81°
68°
29
80°
67°
30
79°
66°
1
77°
68°
2
77°
67°
3
78°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kea'au
Kea'au's September 2026 forecast shows daily high temperatures ranging from 77° to 86°, with overnight lows between 66° and 73°. The average high for September is 82° with an average low of 69°. 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 Kea'au. See also: October | November | December.
