S
M
T
W
T
F
S
30
91°
81°
31
91°
78°
1
89°
75°
2
90°
76°
3
93°
77°
4
91°
78°
5
92°
76°
6
92°
76°
7
92°
74°
8
92°
78°
9
90°
79°
10
89°
79°
11
90°
80°
12
90°
78°
13
91°
78°
14
91°
80°
15
89°
81°
16
88°
80°
17
87°
79°
18
89°
79°
19
88°
78°
20
89°
80°
21
86°
78°
22
87°
79°
23
85°
77°
24
85°
80°
25
86°
80°
26
85°
80°
27
85°
79°
28
84°
80°
29
84°
80°
30
86°
79°
1
84°
80°
2
84°
80°
3
85°
79°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in South Miami
South Miami's September 2026 forecast shows daily high temperatures ranging from 84° to 91°, with overnight lows between 77° and 81°. The average high for September is 87° with an average low of 79°. 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 South Miami. See also: October | November | December.
