S
M
T
W
T
F
S
30
82°
68°
31
81°
67°
1
82°
68°
2
81°
67°
3
82°
68°
4
81°
68°
5
81°
67°
6
80°
68°
7
82°
68°
8
82°
67°
9
81°
68°
10
82°
67°
11
81°
67°
12
81°
66°
13
80°
67°
14
81°
67°
15
81°
66°
16
80°
67°
17
80°
67°
18
81°
68°
19
82°
67°
20
81°
68°
21
82°
67°
22
81°
66°
23
80°
67°
24
79°
68°
25
80°
68°
26
80°
67°
27
79°
68°
28
80°
68°
29
81°
67°
30
81°
64°
1
80°
67°
2
80°
67°
3
79°
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 79° to 82°, with overnight lows between 64° and 68°. The average high for September is 81° with an average low of 67°. 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.
