S
M
T
W
T
F
S
30
96°
69°
31
97°
70°
1
95°
69°
2
91°
68°
3
90°
69°
4
96°
68°
5
96°
68°
6
95°
70°
7
96°
69°
8
95°
68°
9
94°
70°
10
94°
69°
11
90°
70°
12
89°
70°
13
91°
69°
14
91°
70°
15
88°
70°
16
90°
69°
17
92°
69°
18
93°
68°
19
92°
67°
20
91°
68°
21
92°
69°
22
91°
68°
23
91°
68°
24
89°
67°
25
85°
68°
26
85°
67°
27
86°
66°
28
89°
62°
29
84°
61°
30
85°
59°
1
86°
57°
2
81°
56°
3
80°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sun City
Sun City's September 2026 forecast shows daily high temperatures ranging from 80° to 97°, with overnight lows between 56° and 70°. The average high for September is 90° with an average low of 67°. 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 Sun City. See also: October | November | December.
