S
M
T
W
T
F
S
26
78°
63°
27
80°
66°
28
77°
59°
29
77°
57°
30
75°
59°
1
81°
58°
2
77°
60°
3
76°
58°
4
82°
62°
5
80°
62°
6
80°
60°
7
82°
63°
8
84°
65°
9
83°
65°
10
85°
64°
11
85°
65°
12
84°
66°
13
85°
64°
14
81°
63°
15
82°
64°
16
85°
65°
17
86°
66°
18
86°
66°
19
85°
65°
20
81°
60°
21
81°
60°
22
83°
62°
23
87°
66°
24
88°
67°
25
88°
68°
26
87°
68°
27
86°
67°
28
85°
68°
29
88°
69°
30
87°
69°
31
88°
68°
1
86°
66°
2
85°
69°
3
86°
67°
4
85°
66°
5
87°
65°
6
90°
67°
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 75° to 90°, with overnight lows between 57° and 69°. The average high for May is 83° 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.
