Istanbul Weather & Climate

Turkey

Istanbul sees feels-like daytime highs peak around 33.7°C in July and nighttime lows bottom out near 3.6°C in February. December is the wettest month (~73 mm), while July is the driest (~17 mm). For sunshine, July leads with about 94% clear skies.

Best time to visit Istanbul

Based on mild feels-like temperatures and low rain chances, the most comfortable months are May, September, and October — expect around 15.822.9°C with roughly 17% chance of rain on a given day in May.

Istanbul climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January3.8° / 8.2°25%60 mm45%18.6 kph
February3.6° / 8.2°21%48 mm44%18.8 kph
March5.3° / 11.5°22%46 mm48%17.6 kph
April9.9° / 16.4°21%39 mm54%15.4 kph
May15.8° / 22.9°17%29 mm66%14.2 kph
June21.4° / 29.6°14%24 mm82%14.6 kph
July25.1° / 33.7°8%17 mm94%17.3 kph
August24.7° / 32.2°10%19 mm93%18.6 kph
September19.9° / 27.9°15%34 mm79%17.5 kph
October14.8° / 21.6°21%55 mm61%17.5 kph
November9.6° / 14.4°27%66 mm50%17.7 kph
December6° / 10.5°30%73 mm44%18.3 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

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