S
M
T
W
T
F
S
26
79°
54°
27
83°
57°
28
61°
50°
29
61°
45°
30
65°
37°
1
62°
41°
2
60°
38°
3
78°
58°
4
81°
59°
5
63°
45°
6
56°
42°
7
64°
45°
8
71°
44°
9
73°
45°
10
70°
47°
11
68°
43°
12
72°
48°
13
77°
52°
14
77°
49°
15
76°
50°
16
76°
49°
17
76°
54°
18
75°
55°
19
79°
53°
20
74°
49°
21
77°
47°
22
70°
46°
23
71°
46°
24
71°
48°
25
69°
48°
26
71°
47°
27
73°
48°
28
74°
53°
29
74°
53°
30
78°
57°
31
75°
56°
1
75°
51°
2
76°
52°
3
76°
55°
4
77°
59°
5
79°
59°
6
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cuba
Cuba's May 2026 forecast shows daily high temperatures ranging from 56° to 81°, with overnight lows between 42° and 60°. The average high for May is 73° with an average low of 51°. 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 Cuba. See also: June | July | August.