S
M
T
W
T
F
S
26
89°
77°
27
88°
78°
28
88°
78°
29
89°
79°
30
88°
78°
31
89°
79°
1
88°
78°
2
87°
77°
3
87°
77°
4
88°
78°
5
90°
80°
6
89°
79°
7
89°
78°
8
88°
78°
9
89°
79°
10
89°
79°
11
88°
78°
12
90°
79°
13
89°
78°
14
89°
77°
15
88°
78°
16
89°
77°
17
88°
78°
18
87°
76°
19
89°
78°
20
88°
79°
21
88°
77°
22
89°
77°
23
88°
79°
24
Hist. Avg.
90°
78°
25
Hist. Avg.
90°
78°
26
Hist. Avg.
90°
78°
27
Hist. Avg.
90°
77°
28
Hist. Avg.
90°
77°
29
Hist. Avg.
90°
77°
30
Hist. Avg.
90°
77°
31
Hist. Avg.
90°
77°
1
Hist. Avg.
90°
77°
2
Hist. Avg.
90°
77°
3
Hist. Avg.
90°
77°
4
Hist. Avg.
90°
77°
5
Hist. Avg.
90°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Miami Beach
Miami Beach's August 2026 forecast shows daily high temperatures ranging from 87° to 90°, with overnight lows between 76° and 80°. The average high for August is 88° with an average low of 78°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Miami Beach. See also: September | October | November.
