S
M
T
W
T
F
S
26
82°
69°
27
82°
69°
28
83°
67°
29
82°
72°
30
83°
73°
31
82°
66°
1
82°
72°
2
84°
74°
3
85°
67°
4
84°
66°
5
82°
67°
6
83°
66°
7
84°
68°
8
81°
66°
9
81°
72°
10
86°
71°
11
82°
68°
12
84°
71°
13
87°
73°
14
81°
73°
15
83°
72°
16
87°
66°
17
86°
65°
18
80°
66°
19
79°
69°
20
79°
65°
21
80°
64°
22
80°
69°
23
80°
70°
24
84°
71°
25
87°
70°
26
86°
63°
27
83°
62°
28
77°
62°
29
78°
64°
30
78°
66°
31
81°
69°
1
83°
69°
2
84°
67°
3
84°
64°
4
83°
69°
5
83°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in South Beach
South Beach's August 2026 forecast shows daily high temperatures ranging from 77° to 87°, with overnight lows between 62° and 74°. The average high for August is 83° with an average low of 68°. 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 South Beach. See also: September | October | November.
