S
M
T
W
T
F
S
26
80°
48°
27
69°
56°
28
62°
52°
29
61°
45°
30
64°
39°
1
61°
40°
2
60°
44°
3
75°
44°
4
80°
55°
5
62°
45°
6
60°
42°
7
67°
41°
8
65°
53°
9
80°
49°
10
69°
49°
11
75°
48°
12
82°
52°
13
72°
46°
14
73°
53°
15
84°
62°
16
78°
65°
17
87°
67°
18
83°
61°
19
72°
52°
20
69°
49°
21
70°
50°
22
70°
52°
23
73°
53°
24
75°
56°
25
79°
59°
26
78°
56°
27
79°
61°
28
80°
60°
29
81°
57°
30
73°
57°
31
74°
56°
1
74°
53°
2
75°
55°
3
75°
60°
4
80°
63°
5
84°
64°
6
84°
65°
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 69° to 87°, with overnight lows between 46° and 67°. The average high for May is 77° with an average low of 57°. 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.