September in Bilbao
typically offers mild and pleasant weather, making it an ideal time to visit the city. Daytime temperatures usually range between 20°C (68°F) and 25°C (77°F), while evenings can be cooler, with temperatures dropping to around 15°C (59°F). It is a transitional month, so occasional rainfall is possible, especially towards the end of the month. With the combination of warm days and cooler nights, we recommend bringing layers to stay comfortable.
While the weather is generally favorable, it is always a good idea to prepare for unexpected showers.
Bring your umbrella!