S
M
T
W
T
F
S
26
54°
46°
27
59°
46°
28
55°
46°
29
63°
45°
30
64°
48°
1
54°
50°
2
55°
50°
3
59°
46°
4
57°
45°
5
55°
46°
6
52°
43°
7
55°
41°
8
57°
50°
9
57°
45°
10
55°
41°
11
50°
43°
12
55°
43°
13
54°
46°
14
54°
46°
15
53°
45°
16
53°
44°
17
55°
46°
18
54°
46°
19
55°
50°
20
57°
52°
21
55°
52°
22
N/A
23
58°
50°
24
60°
49°
25
65°
51°
26
65°
51°
27
64°
52°
28
64°
54°
29
63°
49°
30
65°
51°
31
61°
50°
1
60°
51°
2
61°
49°
3
62°
50°
4
58°
45°
5
60°
48°
6
59°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Isle of Whithorn
Isle of Whithorn's May 2026 forecast shows daily high temperatures ranging from 58° to 65°, with overnight lows between 45° and 54°. The average high for May is 62° 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 Isle of Whithorn. See also: June | July | August.
