S
M
T
W
T
F
S
30
78°
68°
31
79°
67°
1
81°
68°
2
80°
67°
3
81°
67°
4
80°
66°
5
80°
68°
6
79°
68°
7
81°
67°
8
80°
69°
9
81°
68°
10
81°
68°
11
80°
67°
12
80°
68°
13
79°
68°
14
80°
67°
15
80°
67°
16
79°
66°
17
79°
68°
18
80°
69°
19
79°
69°
20
80°
67°
21
81°
68°
22
80°
67°
23
80°
68°
24
79°
68°
25
80°
67°
26
80°
68°
27
79°
68°
28
80°
67°
29
81°
68°
30
80°
64°
1
80°
67°
2
79°
68°
3
80°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Honaunau-Napo'opo'o
Honaunau-Napo'opo'o's September 2026 forecast shows daily high temperatures ranging from 78° to 81°, with overnight lows between 64° and 69°. The average high for September is 80° with an average low of 68°. 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 Honaunau-Napo'opo'o. See also: October | November | December.
