S
M
T
W
T
F
S
26
76°
60°
27
74°
65°
28
79°
64°
29
81°
61°
30
75°
60°
1
75°
60°
2
76°
57°
3
76°
58°
4
75°
54°
5
76°
62°
6
77°
62°
7
76°
61°
8
75°
62°
9
78°
62°
10
77°
64°
11
81°
64°
12
82°
63°
13
82°
65°
14
81°
65°
15
81°
64°
16
79°
64°
17
80°
65°
18
80°
65°
19
78°
64°
20
82°
63°
21
77°
60°
22
77°
66°
23
78°
64°
24
78°
64°
25
82°
67°
26
84°
68°
27
85°
68°
28
85°
69°
29
84°
69°
30
85°
68°
31
84°
68°
1
85°
68°
2
85°
68°
3
84°
67°
4
83°
69°
5
85°
68°
6
84°
69°
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 74° to 85°, with overnight lows between 54° and 69°. The average high for May is 80° with an average low of 64°. 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.