The temperatures in Bilbao in May are usually low and can range between 11°C and 18°C.
You can expect about 3 to 8 days of rain in Bilbao during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Bilbao in May 2025.
If you’re planning to visit Bilbao in the near future, we highly recommend that you review the 14 day weather forecast for Bilbao before you arrive.
Temperatures
18° / 11°
Rainy Days
7
Snowy Days
0
Dry Days
24
Rainfall
97
mm
Sun Hours
9.6
Hrs
