S
M
T
W
T
F
S
26
79°
56°
27
75°
56°
28
75°
59°
29
76°
59°
30
81°
58°
31
75°
56°
1
76°
57°
2
75°
58°
3
75°
64°
4
81°
62°
5
83°
58°
6
77°
57°
7
75°
62°
8
80°
60°
9
82°
54°
10
76°
59°
11
76°
59°
12
81°
62°
13
78°
58°
14
77°
57°
15
76°
58°
16
82°
63°
17
82°
63°
18
83°
62°
19
82°
61°
20
81°
57°
21
76°
56°
22
76°
55°
23
77°
59°
24
82°
59°
25
79°
56°
26
76°
59°
27
77°
60°
28
76°
59°
29
77°
56°
30
75°
56°
31
76°
55°
1
76°
59°
2
76°
57°
3
75°
54°
4
75°
53°
5
Hist. Avg.
71°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Bilbao
Bilbao's August 2026 forecast shows daily high temperatures ranging from 75° to 83°, with overnight lows between 53° and 64°. The average high for August is 78° with an average low of 58°. 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 Bilbao. See also: September | October | November.
