S
M
T
W
T
F
S
30
88°
80°
31
94°
79°
1
91°
75°
2
90°
79°
3
90°
80°
4
91°
78°
5
90°
79°
6
90°
78°
7
88°
78°
8
90°
79°
9
90°
79°
10
91°
80°
11
90°
81°
12
89°
81°
13
88°
79°
14
88°
79°
15
88°
77°
16
89°
78°
17
93°
76°
18
91°
79°
19
83°
72°
20
87°
74°
21
87°
73°
22
87°
72°
23
87°
75°
24
88°
74°
25
87°
75°
26
87°
72°
27
87°
72°
28
86°
73°
29
82°
71°
30
83°
70°
1
83°
70°
2
82°
71°
3
82°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cayey
Cayey's September 2026 forecast shows daily high temperatures ranging from 82° to 88°, with overnight lows between 70° and 75°. The average high for September is 85° with an average low of 72°. 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 Cayey. See also: October | November | December.
