S
M
T
W
T
F
S
26
79°
77°
27
80°
78°
28
81°
78°
29
80°
77°
30
80°
78°
1
80°
71°
2
73°
62°
3
75°
68°
4
77°
74°
5
79°
75°
6
82°
77°
7
79°
78°
8
80°
77°
9
79°
73°
10
81°
78°
11
80°
74°
12
78°
76°
13
79°
75°
14
80°
75°
15
81°
78°
16
81°
78°
17
82°
80°
18
82°
79°
19
81°
80°
20
81°
70°
21
80°
70°
22
82°
79°
23
86°
78°
24
80°
77°
25
83°
78°
26
83°
79°
27
85°
79°
28
86°
78°
29
86°
77°
30
88°
76°
31
86°
77°
1
85°
77°
2
86°
78°
3
88°
76°
4
87°
78°
5
85°
79°
6
86°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in South Padre Island
South Padre Island's May 2026 forecast shows daily high temperatures ranging from 80° to 88°, with overnight lows between 76° and 79°. The average high for May is 85° with an average low of 78°. 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 South Padre Island. See also: June | July | August.