S
M
T
W
T
F
S
30
83°
75°
31
84°
75°
1
85°
74°
2
84°
75°
3
83°
74°
4
83°
74°
5
84°
75°
6
83°
75°
7
83°
74°
8
84°
75°
9
83°
75°
10
84°
74°
11
84°
75°
12
83°
75°
13
83°
74°
14
86°
73°
15
86°
74°
16
87°
75°
17
86°
74°
18
87°
73°
19
86°
72°
20
85°
72°
21
84°
73°
22
85°
74°
23
86°
75°
24
87°
74°
25
87°
74°
26
86°
73°
27
87°
74°
28
86°
75°
29
86°
75°
30
87°
74°
1
87°
75°
2
86°
74°
3
87°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Po'ipu
Po'ipu's September 2026 forecast shows daily high temperatures ranging from 83° to 87°, with overnight lows between 72° and 75°. The average high for September is 85° 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 Po'ipu. See also: October | November | December.
