S
M
T
W
T
F
S
26
84°
74°
27
94°
76°
28
92°
73°
29
87°
75°
30
84°
76°
1
85°
77°
2
84°
73°
3
82°
69°
4
87°
71°
5
90°
73°
6
87°
74°
7
86°
75°
8
90°
78°
9
90°
78°
10
90°
79°
11
92°
80°
12
89°
76°
13
86°
77°
14
88°
77°
15
94°
76°
16
90°
80°
17
93°
78°
18
96°
78°
19
96°
78°
20
93°
75°
21
93°
75°
22
93°
75°
23
93°
75°
24
91°
75°
25
90°
79°
26
91°
75°
27
90°
78°
28
87°
77°
29
87°
76°
30
84°
79°
31
88°
76°
1
85°
75°
2
84°
76°
3
85°
75°
4
87°
76°
5
86°
77°
6
88°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. Pete Beach
St. Pete Beach's May 2026 forecast shows daily high temperatures ranging from 84° to 90°, with overnight lows between 75° and 79°. The average high for May is 86° with an average low of 77°. 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 St. Pete Beach. See also: June | July | August.