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Istanbul in September
Istanbul, Turkey

Istanbul in September

Home›Explore›Istanbul›September

Istanbul in September

Istanbul, Turkey

Visiting Istanbul in September means experiencing the autumn. During autumn, Istanbul offers crisp air, changing colours, and a cosy atmosphere.

SeasonAutumn
Travel StyleFoodie's Love
Cost$$

Weather in Istanbul in September

Average highs around 25.5C and lows near 17.6C. 48.5mm average precipitation and about 7 rainy days. September typically sits between August and October conditions, so it is useful for travelers wanting a balanced window in Istanbul. Pack flexible layers for changing daytime and evening temperatures.

Avg High25.5C
Avg Low17.6C
Rainy Days7
Precipitation48.5mm
Daylight12.5h/day
Sunshine10.8h/day
Wind21.3 km/h
UVmoderate
Humiditydry

Temperature

September brings autumn conditions in Istanbul, Turkey. The average temperature is about 21.6C, with lows near 17.6C and highs around 25.5C.

Sunshine Hours

Istanbul, Turkey usually gets around 10.8 hours of sunshine per day in September, with roughly 12.5 daylight hours available for sightseeing.

Rain

September sees around 48.5mm of rainfall over about 7 days. Rain can occur for around 2.8 hours per day on average.

Humidity

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Humidity in September is generally dry for Istanbul, Turkey, especially when rainfall periods increase.

Additional Information

Average winds are around 21.3 km/h, so pack layers that handle changing conditions. Pack flexible layers for changing daytime and evening temperatures.

Our September Hotel Picks for Istanbul

Four Seasons Hotel Istanbul at Sultanahmet

Four Seasons Hotel Istanbul at Sultanahmet

Neoclassical lodging & a spa set in an former jail with elegant dining, a rooftop lounge & a spa.

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Elite World Grand İstanbul Basın Ekspres

Elite World Grand İstanbul Basın Ekspres

Posh hotel featuring a cafe, 2 bars & 2 restaurants, plus a spa with indoor & outdoor pools.

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Mandarin Oriental Bosphorus, Istanbul

Mandarin Oriental Bosphorus, Istanbul

High-end hotel on the Bosphorus featuring a restaurant & a spa, plus indoor & outdoor pools.

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What to Do in Istanbul in September

Rahmi M. Koç Museum

Rahmi M. Koç Museum

Museum on transportation, industry & communications with a car collection & some hands-on exhibits.

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Grand Bazaar

Grand Bazaar

Historic sprawling network of indoor souks & market streets peddling leather, jewelry & gifts.

Explore activity
Basilica Cistern

Basilica Cistern

Huge underground Roman water source held up with 336 marble columns covering 9,800 sq. meters.

Explore activity

Travel tips for Istanbul in September

Pack flexible layers for changing daytime and evening temperatures. Book accommodation earlier when events overlap with peak weekends, and keep an eye on changing weather windows for day trips.

FAQ: Istanbul in September

Is September a good month to visit Istanbul?
September sits in the autumn period, so trip quality depends on your preferred weather, crowd levels, and pace.
What should I pack for Istanbul in September?
Average highs around 25.5C and lows near 17.6C. Pack flexible layers for changing daytime and evening temperatures.
What weather should I expect in Istanbul during September?
September typically averages around 21.6C, with about 48.5mm of rain across 7 days.

Other Months

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