Live-Entscheidung für Barcelona. Alle 30 Minuten aktualisiert.
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Barcelona's coastal Mediterranean climate differs from Madrid's in one key way: humidity. Sitting on the coast, Barcelona has maritime moisture that makes summer heat feel more oppressive than equivalent temperatures inland. August regularly brings 30°C with 70–75% humidity — a combination that makes ventilation less refreshing than the temperature alone would suggest.
The Tramuntana wind from the north is Barcelona's natural air conditioning. When it blows — typically in spring and autumn — it clears pollution and drops humidity rapidly. Those are the days when opening windows genuinely transforms your apartment. The Xaloc, a hot south wind from the Sahara, does the opposite and offers no ventilation benefit.
Air quality in Barcelona is a persistent challenge: the city regularly ranks among Europe's most polluted due to dense traffic, port activity, and its sheltered valley geography. Summer ozone and winter particulates frequently push AQI above 50. The real-time AQI component of OpenWindow.live is especially important for Barcelona residents.
In Barcelona sind frühmorgens (5–8 Uhr) und spätabends (nach Sonnenuntergang) meist am besten, wenn die Außentemperatur unter die Innentemperatur fällt.
In den meisten Fällen ja. Lüften kann die Innentemperatur in 30 Minuten um 2–5°C senken, wenn die Außenluft kühler ist.
Über 80% wird die Luft beim Lüften schwül. Besser auf trockenere Stunden warten.