S
M
T
W
T
F
S
30
82°
75°
31
83°
74°
1
81°
74°
2
81°
75°
3
82°
76°
4
83°
76°
5
83°
75°
6
84°
75°
7
83°
74°
8
83°
75°
9
84°
73°
10
83°
74°
11
84°
73°
12
83°
75°
13
83°
74°
14
84°
74°
15
83°
75°
16
83°
76°
17
84°
75°
18
84°
74°
19
83°
72°
20
83°
75°
21
84°
75°
22
84°
74°
23
83°
75°
24
83°
74°
25
84°
75°
26
84°
76°
27
83°
75°
28
84°
76°
29
83°
75°
30
84°
76°
1
83°
74°
2
83°
74°
3
83°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kahuku
Kahuku's September 2026 forecast shows daily high temperatures ranging from 81° to 84°, with overnight lows between 72° and 76°. The average high for September is 83° with an average low of 75°. 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 Kahuku. See also: October | November | December.