S
M
T
W
T
F
S
26
80°
71°
27
83°
70°
28
82°
71°
29
83°
71°
30
85°
70°
31
84°
71°
1
85°
70°
2
86°
72°
3
85°
71°
4
84°
70°
5
86°
71°
6
86°
72°
7
85°
72°
8
86°
71°
9
85°
72°
10
85°
72°
11
86°
71°
12
86°
71°
13
85°
72°
14
86°
72°
15
86°
71°
16
85°
72°
17
86°
72°
18
86°
70°
19
85°
65°
20
81°
66°
21
81°
69°
22
82°
65°
23
80°
63°
24
80°
64°
25
80°
65°
26
81°
64°
27
80°
66°
28
81°
67°
29
83°
65°
30
80°
64°
31
79°
63°
1
80°
64°
2
79°
64°
3
80°
65°
4
81°
68°
5
81°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Barcelona
Barcelona's August 2026 forecast shows daily high temperatures ranging from 79° to 86°, with overnight lows between 63° and 72°. The average high for August is 83° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Barcelona. See also: September | October | November.
