S
M
T
W
T
F
S
26
81°
58°
27
81°
52°
28
75°
51°
29
75°
57°
30
76°
54°
31
76°
55°
1
79°
53°
2
77°
51°
3
76°
50°
4
74°
49°
5
75°
50°
6
78°
52°
7
79°
50°
8
75°
50°
9
78°
52°
10
80°
54°
11
82°
53°
12
81°
57°
13
81°
58°
14
82°
57°
15
81°
50°
16
81°
48°
17
73°
48°
18
73°
49°
19
70°
50°
20
71°
48°
21
70°
51°
22
75°
55°
23
72°
54°
24
80°
55°
25
81°
48°
26
80°
46°
27
71°
45°
28
69°
44°
29
70°
48°
30
71°
54°
31
77°
54°
1
77°
53°
2
78°
48°
3
75°
50°
4
76°
51°
5
75°
48°
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 69° to 82°, with overnight lows between 44° and 58°. The average high for August is 76° with an average low of 51°. 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.
