S
M
T
W
T
F
S
26
68°
49°
27
72°
48°
28
71°
50°
29
69°
47°
30
75°
48°
1
75°
51°
2
71°
51°
3
73°
52°
4
73°
51°
5
69°
47°
6
71°
46°
7
72°
48°
8
73°
47°
9
72°
47°
10
72°
50°
11
78°
51°
12
78°
51°
13
77°
50°
14
75°
50°
15
77°
49°
16
78°
49°
17
78°
51°
18
73°
52°
19
72°
48°
20
71°
46°
21
72°
47°
22
73°
51°
23
74°
48°
24
73°
45°
25
72°
47°
26
72°
45°
27
73°
50°
28
74°
53°
29
76°
51°
30
77°
51°
31
78°
52°
1
79°
49°
2
77°
51°
3
76°
50°
4
76°
52°
5
77°
56°
6
82°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dublin
Dublin's May 2026 forecast shows daily high temperatures ranging from 68° to 82°, with overnight lows between 45° and 57°. The average high for May is 74° 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 Dublin. See also: June | July | August.
