S
M
T
W
T
F
S
26
84°
57°
27
84°
63°
28
77°
64°
29
73°
61°
30
68°
52°
1
66°
46°
2
70°
43°
3
73°
39°
4
81°
48°
5
73°
55°
6
72°
54°
7
68°
50°
8
75°
46°
9
82°
54°
10
82°
57°
11
75°
54°
12
81°
46°
13
82°
58°
14
75°
48°
15
82°
50°
16
84°
64°
17
88°
59°
18
90°
72°
19
90°
72°
20
81°
66°
21
77°
66°
22
82°
68°
23
84°
68°
24
82°
68°
25
77°
68°
26
84°
68°
27
86°
72°
28
88°
68°
29
88°
72°
30
86°
72°
31
90°
70°
1
88°
68°
2
86°
63°
3
84°
57°
4
84°
59°
5
86°
59°
6
86°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lisbon
Lisbon's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Lisbon. See also: June | July | August.
