Similar Climates › City Pairings › Barcelona ≈ Istanbul
City Pairings
loose match
Barcelona, Spain and Istanbul, Türkiye are a loose climate match — 2,233 km (1,388 mi) apart. Barcelona is Köppen zone Csa; Istanbul is Csa.
See Barcelona on the interactive map →Barcelona and Istanbul both sit in the hot-summer Mediterranean (Csa) zone, so their seasonal arcs line up. They sit only about 2,233 km (1,388 mi) apart — a short hop on the atlas for a climate match this close.
It is a loose match: useful as a climate analogue for Barcelona, though not a perfect copy. January means differ by 4°C (Istanbul cooler); July by 0°C (Istanbul cooler). Rainfall shifts more: Istanbul is 65 mm wetter in January.
Sunshine: Istanbul averages 9.5 hours a day across the two months vs 10.7 in Barcelona (1.2 h/day less; January 5.5 h vs 7.9 h, July 13.5 h vs 13.5 h). PM2.5 averages stay near each other (18 µg/m³ in Istanbul, 17 in Barcelona). Dew points differ modestly (January 1°C vs 4°C; July 16°C vs 17°C).
January & July · °C and mm
Compare Barcelona and Istanbul month by month on the interactive map →
See Istanbul's climate twin on its own page.
On Similar Climates, Istanbul, Türkiye is the closest distant match for Barcelona, Spain — scored loose, about 2,233 km (1,388 mi) away.
Barcelona and Istanbul are separated by roughly 2,233 km (1,388 mi) on the great-circle route.
Yes — both cities are in the same hemisphere, so summer and winter fall in the same calendar months.
Yes — both are hot-summer Mediterranean (Csa).
Barcelona has a hot-summer Mediterranean climate (Csa). January averages a high of 14°C and a low of 6°C with 40 mm of rain; July averages 28°C / 21°C and 25 mm.
Barcelona averages about 7.9 hours of sunshine a day in January and 13.5 hours in July.
January PM2.5 averages about 20.8 µg/m³ (US AQI 71); July averages 12.7 µg/m³ (US AQI 57).
Other close climate matches for Barcelona: Alexandria (loose), Palermo (fair), Tbilisi (loose).
All hot-summer Mediterranean (Csa) cities on Similar Climates →
Explore Barcelona and Istanbul on the interactive map →