S
M
T
W
T
F
S
30
74°
50°
31
76°
57°
1
72°
55°
2
75°
54°
3
79°
58°
4
81°
52°
5
78°
50°
6
74°
48°
7
73°
50°
8
73°
55°
9
76°
50°
10
69°
47°
11
69°
44°
12
68°
45°
13
69°
49°
14
68°
44°
15
67°
43°
16
65°
43°
17
65°
41°
18
64°
42°
19
65°
42°
20
65°
43°
21
66°
43°
22
68°
49°
23
69°
50°
24
71°
50°
25
72°
49°
26
70°
41°
27
67°
42°
28
62°
48°
29
61°
46°
30
69°
47°
1
66°
46°
2
61°
39°
3
60°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Poy Sippi
Poy Sippi's September 2026 forecast shows daily high temperatures ranging from 60° to 81°, with overnight lows between 39° and 58°. The average high for September is 69° with an average low of 47°. 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 Poy Sippi. See also: October | November | December.