S
M
T
W
T
F
S
30
105°
79°
31
92°
80°
1
101°
84°
2
102°
81°
3
101°
80°
4
103°
81°
5
100°
80°
6
101°
82°
7
105°
81°
8
102°
79°
9
101°
77°
10
100°
78°
11
101°
79°
12
100°
79°
13
98°
77°
14
99°
73°
15
102°
78°
16
103°
79°
17
102°
78°
18
102°
78°
19
101°
77°
20
101°
76°
21
100°
75°
22
100°
75°
23
100°
74°
24
100°
75°
25
98°
74°
26
94°
73°
27
91°
69°
28
93°
70°
29
94°
72°
30
94°
71°
1
93°
71°
2
95°
70°
3
96°
71°
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 91° to 105°, with overnight lows between 69° and 84°. The average high for September is 99° with an average low of 76°. 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.
