S
M
T
W
T
F
S
26
89°
75°
27
89°
72°
28
86°
72°
29
85°
73°
30
85°
71°
31
87°
71°
1
87°
72°
2
86°
71°
3
86°
71°
4
87°
75°
5
89°
75°
6
86°
74°
7
89°
72°
8
89°
75°
9
90°
74°
10
88°
75°
11
89°
74°
12
90°
75°
13
89°
74°
14
89°
73°
15
85°
71°
16
87°
72°
17
89°
71°
18
89°
71°
19
Hist. Avg.
86°
70°
20
Hist. Avg.
86°
70°
21
Hist. Avg.
86°
70°
22
Hist. Avg.
86°
70°
23
Hist. Avg.
86°
69°
24
Hist. Avg.
86°
69°
25
Hist. Avg.
86°
69°
26
Hist. Avg.
86°
69°
27
Hist. Avg.
86°
69°
28
Hist. Avg.
86°
69°
29
Hist. Avg.
86°
69°
30
Hist. Avg.
86°
68°
31
Hist. Avg.
86°
68°
1
Hist. Avg.
86°
68°
2
Hist. Avg.
85°
68°
3
Hist. Avg.
85°
68°
4
Hist. Avg.
85°
68°
5
Hist. Avg.
85°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Myrtle Beach
Myrtle Beach's August 2026 forecast shows daily high temperatures ranging from 85° to 90°, with overnight lows between 71° and 75°. The average high for August is 88° with an average low of 73°. 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 Myrtle Beach. See also: September | October | November.
