S
M
T
W
T
F
S
26
63°
47°
27
64°
48°
28
66°
48°
29
67°
50°
30
65°
49°
1
64°
50°
2
65°
50°
3
66°
53°
4
67°
50°
5
68°
53°
6
69°
53°
7
67°
56°
8
67°
55°
9
68°
56°
10
68°
56°
11
69°
55°
12
69°
54°
13
70°
53°
14
68°
54°
15
73°
56°
16
75°
57°
17
76°
58°
18
75°
58°
19
75°
60°
20
77°
60°
21
77°
59°
22
76°
59°
23
76°
60°
24
78°
59°
25
78°
61°
26
77°
61°
27
76°
60°
28
77°
61°
29
76°
60°
30
77°
59°
31
77°
57°
1
75°
58°
2
76°
59°
3
77°
57°
4
78°
58°
5
79°
58°
6
79°
59°
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 63° to 79°, with overnight lows between 47° and 61°. The average high for May is 72° 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 Naples. See also: June | July | August.