S
M
T
W
T
F
S
30
88°
76°
31
89°
75°
1
89°
75°
2
88°
74°
3
88°
75°
4
89°
75°
5
88°
74°
6
88°
74°
7
89°
73°
8
88°
73°
9
88°
74°
10
87°
73°
11
86°
73°
12
86°
74°
13
87°
74°
14
87°
76°
15
88°
73°
16
89°
74°
17
88°
75°
18
89°
76°
19
89°
76°
20
88°
75°
21
89°
75°
22
89°
76°
23
88°
76°
24
89°
75°
25
89°
75°
26
88°
72°
27
88°
75°
28
89°
75°
29
89°
74°
30
88°
74°
1
87°
73°
2
87°
73°
3
86°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Manoa
Manoa's September 2026 forecast shows daily high temperatures ranging from 86° to 89°, with overnight lows between 72° and 76°. The average high for September is 88° with an average low of 74°. 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 Manoa. See also: October | November | December.
