Founded as a Roman colony named Barcino in the 1st century BC, Barcelona has been the capital of Catalonia for over a thousand years. Antoni Gaudi's unfinished Sagrada Familia basilica, under construction since 1882, defines the skyline. The city's Gothic Quarter preserves medieval streets while Las Ramblas, designed in the 18th century, remains one of Europe's most famous promenades.
Nights sit around 19°C and afternoons around 27°C.
Barcelona has real seasons: summer afternoons sit around 29°C, winter ones around 16°C.
Some summer days reach 32°C, and some winter nights drop to 2°C.
Most of the rain falls in autumn, least in summer. The wettest month is October, with 91 mm.
Wind is rarely an issue; most months sit between calm and a light breeze. Air quality is worth watching: February averages an AQI of 73, while September clears to 53.
Days stretch to about 15.0 hours of light in June and shrink to 9.0 in December — something to weigh if you work to a fixed timezone.
For what you're after, the best months in Barcelona are June – September. Expect fast internet (334 Mbps) and a high cost of living (about €2100 a month).
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