Cistern of Philoxenos
Archaeological Site Large Byzantine subterranean cistern in Istanbul
Beneath Istanbul’s Sultanahmet district, the Cistern of Philoxenos offers a Byzantine underground reservoir lined with columns and walkways. Tourists visit for its atmospheric lighting, column forest and proximity to Hagia Sophia and the Hippodrome.
The Cistern of Philoxenos is a Byzantine-era subterranean water reservoir located in Istanbul’s historic peninsula. It preserves a large hypostyle chamber of stone columns that once stored and regulated urban water supplies.
Constructed in the Byzantine period to serve the water needs of the imperial city, the cistern formed part of a broader network of reservoirs and aqueducts. It survived the Ottoman period and later centuries, and has been consolidated for public access and display.
The cistern sits within Istanbul’s Sultanahmet quarter on the historic peninsula, close to other major Byzantine and Ottoman monuments such as the Hagia Sophia and the former hippodrome area.
- Context within Istanbul: The cistern is one of several Byzantine-era reservoirs in Istanbul's historic peninsula and is often visited along with the larger Basilica Cistern and nearby monuments.
What to See #
- Columned reservoir: An underground water storage chamber formed by rows of columns supporting a vaulted ceiling, arranged in a rectilinear plan beneath the old city.
How to Get to Cistern of Philoxenos #
Located on Istanbul’s historic peninsula near the Hippodrome and Hagia Sophia; it’s a short walk from Sultanahmet tram stop. Many walking tours of Sultanahmet include the cistern on their itinerary.
Tips for Visiting Cistern of Philoxenos #
- Arrive with comfortable walking shoes; the cistern is dim and surfaces can be damp.
- Study the Medusa-head column bases and other reused capitals-those Roman fragments are delightful anomalies.
- Visit with a guide who can unpack the Ottoman, Byzantine and Roman layers compressed into the site.
Best Time to Visit Cistern of Philoxenos #
Best visited in spring or autumn for comfortable weather in Istanbul; the cistern itself is sheltered from weather but can be crowded in peak summer.
Weather & Climate near Cistern of Philoxenos #
Cistern of Philoxenos's climate is classified as Hot-Summer Mediterranean - Hot-Summer Mediterranean climate with warm summers (peaking in July) and cold winters (coldest in January). Temperatures range from 3°C to 28°C. Moderate rainfall (698 mm/year).
January
January is the coolest month with highs of 9°C and lows of 4°C. Regular rainfall (92 mm) and mostly overcast skies.
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February
February is the coolest month with highs of 9°C and lows of 3°C. Moderate rainfall (64 mm) and mostly overcast skies.
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March
March is cold with highs of 12°C and lows of 4°C. Moderate rainfall (63 mm) and partly cloudy skies.
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April
April is cool with highs of 17°C and lows of 8°C. Moderate rainfall (46 mm) and partly cloudy skies.
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May
May is cool with highs of 22°C and lows of 12°C. Moderate rainfall (36 mm) and partly cloudy skies.
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June
June is mild with highs of 26°C and lows of 17°C. Moderate rainfall (30 mm).
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July
July is the warmest month with highs of 28°C and lows of 19°C. The driest month with just 24 mm and mostly sunny skies.
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August
August is the warmest month with highs of 28°C and lows of 19°C. Moderate rainfall (32 mm) and mostly sunny skies.
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September
September is mild with highs of 25°C and lows of 16°C. Moderate rainfall (40 mm) and partly cloudy skies.
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October
October is cool with highs of 20°C and lows of 12°C. Moderate rainfall (74 mm) and partly cloudy skies.
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November
November is cool with highs of 15°C and lows of 8°C. Regular rainfall (87 mm) and partly cloudy skies.
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December
December is cold with highs of 11°C and lows of 6°C. The wettest month with heavy rain (110 mm) and mostly overcast skies.
