S
M
T
W
T
F
S
26
88°
72°
27
88°
70°
28
86°
74°
29
84°
71°
30
87°
73°
1
87°
72°
2
94°
76°
3
82°
72°
4
82°
71°
5
88°
74°
6
88°
75°
7
91°
74°
8
93°
72°
9
91°
75°
10
91°
79°
11
90°
80°
12
91°
77°
13
94°
77°
14
90°
76°
15
89°
78°
16
88°
78°
17
85°
77°
18
86°
78°
19
85°
76°
20
84°
78°
21
85°
77°
22
84°
76°
23
85°
78°
24
82°
77°
25
81°
75°
26
83°
77°
27
82°
75°
28
85°
76°
29
86°
77°
30
86°
77°
31
85°
76°
1
85°
77°
2
86°
77°
3
85°
76°
4
83°
77°
5
83°
78°
6
84°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Downtown Miami
Downtown Miami's May 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 75° and 78°. The average high for May is 85° 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 Downtown Miami. See also: June | July | August.
