S
M
T
W
T
F
S
26
75°
45°
27
73°
46°
28
66°
43°
29
73°
48°
30
75°
57°
1
73°
54°
2
63°
52°
3
68°
52°
4
63°
48°
5
55°
50°
6
61°
50°
7
63°
48°
8
72°
50°
9
73°
54°
10
59°
52°
11
59°
45°
12
63°
43°
13
59°
45°
14
57°
45°
15
59°
41°
16
59°
41°
17
61°
52°
18
59°
46°
19
64°
54°
20
66°
54°
21
77°
48°
22
86°
59°
23
88°
61°
24
88°
55°
25
90°
63°
26
91°
70°
27
91°
70°
28
91°
63°
29
84°
61°
30
79°
61°
31
77°
54°
1
77°
54°
2
68°
59°
3
68°
57°
4
64°
54°
5
64°
50°
6
64°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rennes
Rennes's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Rennes. See also: June | July | August.
