Castelldefels is located on Spain’s northeastern coast, within the Catalonia region, and it is part of the province of Barcelona. It is nestled between the beautiful Mediterranean Sea and the Garraf massif, a coastal mountain range. The city’s stunning beach stretches for five kilometers along the Mediterranean, making it one of the most popular seaside towns near Barcelona. Castelldefels’ proximity to both the city of Barcelona (just 25 kilometers away) and the natural beauty of the Garraf Natural Park gives it a unique blend of urban convenience and access to outdoor adventures.
The Mediterranean climate of Castelldefels is another major draw for visitors. Summers are hot and dry, making it ideal for beachgoers, while winters are mild with moderate rainfall. The best times to visit are from May to October when temperatures are warm, but even the off-season has its charm for those who enjoy quieter, more laid-back experiences. The pleasant year-round climate makes Castelldefels perfect for hosting outdoor events and beachside weddings or corporate retreats.