S
M
T
W
T
F
S
26
58°
35°
27
53°
33°
28
55°
38°
29
55°
33°
30
56°
32°
1
56°
32°
2
54°
34°
3
55°
37°
4
56°
35°
5
55°
35°
6
57°
37°
7
58°
37°
8
59°
36°
9
59°
35°
10
58°
37°
11
58°
36°
12
59°
41°
13
66°
44°
14
61°
43°
15
62°
48°
16
71°
44°
17
62°
41°
18
62°
40°
19
65°
49°
20
73°
49°
21
73°
44°
22
63°
41°
23
64°
41°
24
65°
42°
25
68°
44°
26
74°
50°
27
76°
47°
28
77°
46°
29
69°
45°
30
73°
47°
31
68°
52°
1
76°
44°
2
69°
44°
3
68°
43°
4
67°
47°
5
70°
50°
6
74°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Naples
Naples's May 2026 forecast shows daily high temperatures ranging from 53° to 77°, with overnight lows between 32° and 54°. The average high for May is 64° with an average low of 41°. 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 Naples. See also: June | July | August.