May in Bilbao, Spain, typically offers pleasant spring weather. Average temperatures range from lows around 11C (52F) to highs around 19C (66F). Rainfall is common, averaging around 90mm throughout the month, so visitors should be prepared for showers. Sunshine hours increase compared to previous months, offering around six hours of sunlight per day.
Understanding the climatic conditions of this period is crucial for travelers planning trips to Bilbao. The mild temperatures and increased daylight hours make May an ideal time for exploring the city’s attractions, from the Guggenheim Museum to the Casco Viejo (Old Town). While rain is a possibility, it rarely disrupts activities for extended periods. Historically, May marks a transition towards warmer summer months in the Basque Country, with local festivals and events beginning to take place.
