S
M
T
W
T
F
S
27
65°
49°
28
79°
46°
29
80°
60°
30
79°
63°
1
73°
56°
2
75°
53°
3
77°
57°
4
67°
55°
5
62°
55°
6
61°
49°
7
65°
47°
8
67°
44°
9
61°
48°
10
68°
49°
11
69°
49°
12
73°
48°
13
68°
52°
14
66°
55°
15
63°
56°
16
68°
49°
17
74°
51°
18
87°
53°
19
66°
60°
20
70°
52°
21
69°
50°
22
66°
51°
23
68°
49°
24
73°
48°
25
72°
50°
26
71°
57°
27
75°
50°
28
72°
52°
29
95°
54°
30
84°
64°
31
72°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Bilbao
Bilbao's May 2025 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 Bilbao. See also: June | July | August.
