S
M
T
W
T
F
S
26
81°
57°
27
86°
59°
28
75°
59°
29
66°
57°
30
68°
57°
1
70°
54°
2
68°
59°
3
66°
54°
4
66°
54°
5
66°
54°
6
69°
54°
7
69°
54°
8
66°
54°
9
64°
54°
10
67°
52°
11
66°
57°
12
66°
57°
13
66°
54°
14
69°
55°
15
67°
55°
16
70°
55°
17
68°
55°
18
66°
52°
19
72°
55°
20
90°
59°
21
88°
59°
22
90°
64°
23
85°
61°
24
82°
57°
25
84°
59°
26
93°
63°
27
93°
66°
28
88°
63°
29
84°
61°
30
85°
61°
31
85°
61°
1
86°
63°
2
72°
62°
3
83°
60°
4
72°
59°
5
70°
57°
6
77°
61°
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.
