S
M
T
W
T
F
S
30
86°
78°
31
85°
75°
1
86°
77°
2
83°
76°
3
85°
76°
4
85°
76°
5
86°
75°
6
82°
75°
7
80°
75°
8
87°
77°
9
85°
75°
10
86°
74°
11
84°
77°
12
84°
72°
13
83°
72°
14
83°
71°
15
84°
71°
16
87°
76°
17
85°
74°
18
84°
74°
19
85°
74°
20
86°
74°
21
87°
72°
22
86°
74°
23
87°
73°
24
86°
75°
25
87°
74°
26
86°
73°
27
84°
74°
28
87°
73°
29
86°
75°
30
84°
73°
1
83°
74°
2
83°
75°
3
83°
75°
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 76°. 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.
