S
M
T
W
T
F
S
26
65°
37°
27
70°
39°
28
68°
42°
29
64°
47°
30
54°
40°
1
56°
35°
2
50°
33°
3
53°
33°
4
69°
38°
5
78°
49°
6
55°
42°
7
54°
36°
8
52°
37°
9
49°
35°
10
60°
41°
11
56°
33°
12
58°
32°
13
57°
41°
14
56°
45°
15
63°
43°
16
77°
44°
17
81°
56°
18
92°
63°
19
90°
69°
20
75°
45°
21
68°
35°
22
68°
48°
23
61°
52°
24
69°
51°
25
71°
52°
26
70°
53°
27
74°
54°
28
75°
56°
29
74°
56°
30
74°
54°
31
77°
50°
1
71°
52°
2
69°
52°
3
68°
51°
4
68°
55°
5
71°
55°
6
73°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Galway
Galway's May 2026 forecast shows daily high temperatures ranging from 61° to 92°, with overnight lows between 35° and 69°. The average high for May is 73° with an average low of 53°. 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 Galway. See also: June | July | August.
