S
M
T
W
T
F
S
26
57°
43°
27
55°
40°
28
56°
43°
29
56°
43°
30
57°
44°
1
56°
47°
2
53°
45°
3
54°
43°
4
53°
43°
5
53°
44°
6
54°
42°
7
52°
41°
8
53°
42°
9
53°
47°
10
54°
44°
11
54°
47°
12
57°
48°
13
58°
48°
14
58°
47°
15
56°
46°
16
56°
47°
17
57°
48°
18
56°
48°
19
57°
49°
20
56°
48°
21
57°
48°
22
57°
47°
23
58°
49°
24
57°
49°
25
56°
48°
26
57°
49°
27
58°
50°
28
58°
50°
29
59°
49°
30
60°
50°
31
59°
48°
1
64°
49°
2
64°
50°
3
63°
49°
4
64°
48°
5
63°
50°
6
63°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dublin 9
Dublin 9's May 2026 forecast shows daily high temperatures ranging from 52° to 64°, with overnight lows between 40° and 50°. The average high for May is 57° with an average low of 47°. 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 9. See also: June | July | August.
