S
M
T
W
T
F
S
26
89°
72°
27
86°
69°
28
86°
75°
29
86°
69°
30
91°
71°
1
89°
71°
2
96°
71°
3
80°
73°
4
82°
71°
5
84°
74°
6
87°
75°
7
90°
72°
8
93°
70°
9
92°
76°
10
91°
78°
11
91°
80°
12
91°
74°
13
92°
73°
14
88°
75°
15
88°
79°
16
89°
78°
17
88°
77°
18
87°
78°
19
89°
76°
20
88°
77°
21
87°
76°
22
87°
75°
23
89°
76°
24
88°
75°
25
86°
76°
26
87°
73°
27
86°
75°
28
88°
74°
29
88°
76°
30
87°
76°
31
88°
75°
1
87°
76°
2
86°
76°
3
85°
75°
4
85°
76°
5
86°
76°
6
85°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Riviera Beach
Riviera Beach's May 2026 forecast shows daily high temperatures ranging from 85° to 92°, with overnight lows between 73° and 79°. The average high for May is 87° with an average low of 76°. 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 Riviera Beach. See also: June | July | August.
