S
M
T
W
T
F
S
26
52°
42°
27
64°
38°
28
64°
42°
29
59°
46°
30
55°
48°
1
63°
41°
2
59°
49°
3
59°
43°
4
68°
43°
5
71°
50°
6
61°
55°
7
64°
49°
8
62°
47°
9
60°
51°
10
62°
52°
11
62°
53°
12
64°
45°
13
67°
51°
14
61°
54°
15
69°
51°
16
75°
49°
17
83°
59°
18
80°
59°
19
88°
62°
20
93°
65°
21
67°
57°
22
64°
53°
23
56°
50°
24
56°
50°
25
68°
56°
26
77°
59°
27
77°
60°
28
77°
59°
29
74°
53°
30
59°
48°
31
74°
54°
1
68°
51°
2
72°
52°
3
71°
56°
4
76°
62°
5
81°
63°
6
78°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Myrtle Beach
Myrtle Beach's May 2026 forecast shows daily high temperatures ranging from 59° to 81°, with overnight lows between 48° and 63°. The average high for May is 73° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Myrtle Beach. See also: June | July | August.