The temperatures in Bilbao in August are comfortable with low of 17°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in Bilbao during the month of August. 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 August 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
24° / 17°
Rainy Days
4
Snowy Days
0
Dry Days
27
Rainfall
65
mm
Sun Hours
10.7
Hrs
