S
M
T
W
T
F
S
26
73°
52°
27
73°
52°
28
72°
51°
29
74°
52°
30
74°
52°
1
73°
53°
2
75°
53°
3
75°
54°
4
74°
54°
5
76°
53°
6
75°
53°
7
76°
54°
8
76°
55°
9
75°
56°
10
77°
56°
11
78°
55°
12
78°
56°
13
77°
56°
14
78°
55°
15
77°
56°
16
78°
57°
17
78°
56°
18
77°
54°
19
76°
57°
20
77°
57°
21
79°
54°
22
81°
58°
23
81°
58°
24
80°
57°
25
79°
57°
26
78°
55°
27
78°
55°
28
79°
58°
29
82°
59°
30
83°
60°
31
83°
61°
1
82°
61°
2
85°
60°
3
84°
59°
4
82°
58°
5
81°
57°
6
82°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Catania
Catania's May 2026 forecast shows daily high temperatures ranging from 72° to 85°, with overnight lows between 51° and 61°. The average high for May is 78° with an average low of 56°. 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 Catania. See also: June | July | August.