S
M
T
W
T
F
S
26
69°
48°
27
80°
44°
28
77°
53°
29
67°
49°
30
56°
39°
1
59°
34°
2
54°
33°
3
61°
30°
4
72°
47°
5
76°
59°
6
61°
50°
7
63°
40°
8
71°
36°
9
70°
52°
10
70°
52°
11
69°
46°
12
73°
42°
13
72°
49°
14
60°
41°
15
70°
35°
16
73°
47°
17
86°
62°
18
89°
58°
19
89°
68°
20
78°
56°
21
66°
50°
22
63°
56°
23
78°
60°
24
73°
62°
25
79°
65°
26
79°
61°
27
76°
59°
28
80°
49°
29
79°
52°
30
76°
49°
31
77°
50°
1
74°
49°
2
74°
48°
3
78°
53°
4
79°
58°
5
80°
58°
6
80°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ireland
Ireland's May 2026 forecast shows daily high temperatures ranging from 74° to 80°, with overnight lows between 48° and 59°. The average high for May is 78° with an average low of 53°. 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 Ireland. See also: June | July | August.
