S
M
T
W
T
F
S
26
85°
68°
27
93°
70°
28
90°
74°
29
78°
56°
30
61°
57°
1
58°
49°
2
74°
45°
3
79°
48°
4
83°
55°
5
90°
64°
6
65°
51°
7
65°
53°
8
75°
52°
9
88°
63°
10
87°
61°
11
77°
58°
12
83°
56°
13
88°
58°
14
90°
61°
15
83°
63°
16
87°
64°
17
85°
75°
18
89°
75°
19
86°
67°
20
80°
67°
21
75°
63°
22
80°
62°
23
84°
63°
24
85°
65°
25
81°
66°
26
82°
67°
27
83°
65°
28
84°
66°
29
85°
66°
30
86°
64°
31
85°
68°
1
85°
68°
2
84°
67°
3
83°
64°
4
82°
62°
5
83°
64°
6
84°
69°
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 75° to 89°, with overnight lows between 62° and 75°. The average high for May is 83° with an average low of 66°. 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.
