S
M
T
W
T
F
S
26
55°
45°
27
53°
45°
28
53°
44°
29
54°
46°
30
54°
47°
1
57°
46°
2
55°
45°
3
54°
46°
4
55°
46°
5
54°
45°
6
55°
46°
7
55°
47°
8
56°
48°
9
56°
47°
10
55°
47°
11
56°
48°
12
56°
48°
13
57°
47°
14
56°
48°
15
56°
48°
16
57°
47°
17
58°
47°
18
61°
48°
19
63°
49°
20
60°
49°
21
62°
48°
22
59°
49°
23
60°
49°
24
61°
47°
25
63°
48°
26
62°
50°
27
64°
46°
28
64°
50°
29
65°
49°
30
64°
47°
31
63°
46°
1
62°
45°
2
64°
48°
3
62°
46°
4
61°
51°
5
62°
50°
6
65°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Howth
Howth's May 2026 forecast shows daily high temperatures ranging from 53° to 65°, with overnight lows between 44° and 51°. The average high for May is 59° 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 Howth. See also: June | July | August.
