Rental prices in Bilbao tend to rise during the summer months, primarily due to the influx of tourists and seasonal demand. For instance, popular areas like the Old Town, known for its vibrant atmosphere and cultural attractions, often see a spike in prices as visitors flock to experience the city's unique charm. Similarly, apartments near the Guggenheim Museum and other attractions become more expensive as these locations are highly sought after for short-term rentals. Additionally, Airbnb listings showcase increased nightly rates during the summer, reflecting the competitive market. Local reports indicate that some homeowners take advantage of this seasonal demand, opting to rent out their properties to tourists rather than to long-term residents, further driving prices up.