Collserola, part of the coastal mountain range, forms a soft rounded backdrop to the city. Its highest point, the mountain of Tibidabo, 512 m high and topped by the 288.4 m telecommunications tower of Collserolla, is visible from most of the city. The city is peppered with small hills, most of them urbanized: Carmel (267 m.), Monterols (121 m.), Putxet (181 m.), Rovira (261 m.) and Peira (133 m.). Near the coast, there's the mountain of Montjuic (173 m.), that houses sport and cultural venues, and some well-known gardens.
To its north, the city borders the municipalities of Santa Coloma de Gramenet and Sant Adrià de Besòs; to the south it borders L'Hospitalet de Llobregat and Esplugues de Llobregat; to the east is the Mediterranean; and to the west are Montcada i Reixach and Sant Cugat del Vallès.
Climate of BarcelonaBarcelona has a Mediterranean climate, with mild winters and hot, dry summers. January and February are the coldest months, averaging temperatures of 10 °C. July and August are the hottest months, averaging temperatures of 25 °C.