S
M
T
W
T
F
S
29
45°
19°
30
56°
33°
31
39°
25°
1
33°
18°
2
36°
20°
3
44°
31°
4
36°
31°
5
36°
25°
6
35°
9°
7
29°
21°
8
37°
35°
9
46°
31°
10
43°
28°
11
43°
30°
12
46°
40°
13
47°
28°
14
41°
20°
15
41°
32°
16
42°
32°
17
45°
34°
18
46°
33°
19
51°
35°
20
54°
34°
21
50°
37°
22
50°
38°
23
55°
38°
24
53°
34°
25
46°
31°
26
47°
35°
27
51°
34°
28
51°
36°
29
49°
34°
30
50°
38°
1
50°
34°
2
51°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Killarney
Killarney's April 2026 forecast shows daily high temperatures ranging from 29° to 55°, with overnight lows between 9° and 40°. The average high for April is 46° with an average low of 32°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Killarney. See also: May | June | July.
