S
M
T
W
T
F
S
30
86°
73°
31
86°
75°
1
89°
73°
2
91°
75°
3
87°
75°
4
88°
75°
5
92°
72°
6
85°
70°
7
85°
70°
8
85°
69°
9
85°
68°
10
84°
72°
11
88°
76°
12
86°
72°
13
90°
78°
14
94°
77°
15
85°
68°
16
84°
65°
17
85°
65°
18
89°
68°
19
86°
71°
20
84°
69°
21
87°
70°
22
82°
73°
23
79°
65°
24
74°
58°
25
75°
55°
26
81°
57°
27
80°
61°
28
81°
63°
29
82°
68°
30
82°
70°
1
83°
72°
2
84°
65°
3
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Myrtle Beach International Airport
Myrtle Beach International Airport's September 2026 forecast shows daily high temperatures ranging from 74° to 84°, with overnight lows between 55° and 72°. The average high for September is 80° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Myrtle Beach International Airport. See also: October | November | December.
