S
M
T
W
T
F
S
26
58°
47°
27
57°
47°
28
59°
48°
29
56°
47°
30
55°
44°
1
54°
43°
2
54°
44°
3
55°
45°
4
55°
44°
5
54°
43°
6
55°
44°
7
56°
48°
8
60°
50°
9
60°
49°
10
58°
50°
11
60°
51°
12
59°
50°
13
59°
49°
14
60°
51°
15
63°
52°
16
64°
53°
17
65°
53°
18
65°
52°
19
64°
53°
20
62°
53°
21
60°
52°
22
60°
53°
23
61°
52°
24
60°
53°
25
60°
53°
26
60°
48°
27
65°
53°
28
67°
54°
29
66°
55°
30
67°
54°
31
67°
54°
1
64°
55°
2
66°
49°
3
66°
50°
4
62°
50°
5
62°
49°
6
64°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dinan
Dinan's May 2026 forecast shows daily high temperatures ranging from 54° to 67°, with overnight lows between 43° and 55°. The average high for May is 61° with an average low of 50°. 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 Dinan. See also: June | July | August.
