S
M
T
W
T
F
S
26
78°
59°
27
81°
65°
28
76°
58°
29
69°
45°
30
63°
41°
1
61°
40°
2
60°
42°
3
68°
48°
4
69°
47°
5
65°
46°
6
66°
47°
7
71°
50°
8
69°
50°
9
71°
51°
10
68°
48°
11
69°
53°
12
75°
56°
13
70°
49°
14
69°
48°
15
68°
48°
16
69°
49°
17
70°
49°
18
73°
58°
19
78°
59°
20
79°
59°
21
79°
58°
22
80°
59°
23
79°
59°
24
82°
61°
25
82°
60°
26
78°
55°
27
75°
55°
28
76°
56°
29
80°
59°
30
82°
61°
31
83°
62°
1
84°
62°
2
85°
63°
3
85°
64°
4
84°
63°
5
83°
63°
6
83°
64°
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 60° to 85°, with overnight lows between 40° and 65°. The average high for May is 75° with an average low of 55°. 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.
