S
M
T
W
T
F
S
26
64°
54°
27
66°
52°
28
66°
54°
29
75°
50°
30
72°
54°
1
68°
54°
2
73°
50°
3
68°
54°
4
72°
57°
5
68°
57°
6
73°
54°
7
68°
52°
8
73°
52°
9
72°
52°
10
70°
61°
11
79°
57°
12
81°
57°
13
70°
54°
14
70°
57°
15
70°
54°
16
72°
46°
17
68°
48°
18
66°
46°
19
68°
50°
20
70°
52°
21
73°
54°
22
75°
57°
23
77°
59°
24
84°
61°
25
88°
63°
26
82°
64°
27
81°
64°
28
79°
66°
29
82°
66°
30
82°
63°
31
81°
64°
1
81°
68°
2
85°
63°
3
80°
61°
4
79°
61°
5
79°
61°
6
77°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cannes
Cannes's May 2026 forecast shows daily high temperatures ranging from 77° to 85°, with overnight lows between 59° and 63°. The average high for May is 80° with an average low of 61°. 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 Cannes. See also: June | July | August.