S
M
T
W
T
F
S
26
72°
57°
27
72°
61°
28
70°
57°
29
70°
63°
30
72°
61°
1
70°
61°
2
66°
64°
3
66°
61°
4
66°
57°
5
68°
54°
6
68°
54°
7
66°
55°
8
66°
55°
9
66°
59°
10
70°
54°
11
72°
61°
12
70°
57°
13
68°
57°
14
77°
57°
15
63°
57°
16
66°
50°
17
68°
57°
18
68°
57°
19
70°
61°
20
76°
62°
21
80°
62°
22
81°
64°
23
81°
64°
24
83°
66°
25
84°
66°
26
84°
67°
27
86°
70°
28
86°
69°
29
84°
66°
30
82°
65°
31
81°
66°
1
79°
64°
2
70°
61°
3
70°
59°
4
71°
61°
5
70°
60°
6
70°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Barcelona
Barcelona's May 2026 forecast shows daily high temperatures ranging from 70° to 86°, with overnight lows between 58° and 70°. The average high for May is 79° with an average low of 64°. 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 Barcelona. See also: June | July | August.
