S
M
T
W
T
F
S
30
86°
72°
31
85°
73°
1
85°
73°
2
86°
72°
3
85°
73°
4
86°
72°
5
85°
73°
6
85°
74°
7
86°
75°
8
86°
74°
9
87°
75°
10
87°
75°
11
88°
74°
12
88°
71°
13
87°
75°
14
88°
75°
15
88°
74°
16
87°
75°
17
87°
75°
18
88°
74°
19
87°
74°
20
86°
75°
21
87°
74°
22
86°
73°
23
86°
73°
24
87°
74°
25
87°
72°
26
86°
72°
27
Hist. Avg.
85°
75°
28
Hist. Avg.
85°
75°
29
Hist. Avg.
85°
75°
30
Hist. Avg.
85°
75°
1
Hist. Avg.
85°
75°
2
Hist. Avg.
85°
74°
3
Hist. Avg.
85°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Po'ipu
Po'ipu's September 2026 forecast shows daily high temperatures ranging from 85° to 88°, with overnight lows between 71° and 75°. The average high for September is 87° 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.
