Istanbul is under a “yellow” weather warning: severe thunderstorms, heavy rainfall, flooding and gusty winds are expected. The alert also extends to nearby provinces including Kocaeli, Sakarya, Düzce, Zonguldak, Bartin.
Forecasts indicate that after 3 p.m., storms will develop in western districts (Silivri, Arnavutköy, Çatalca) and spread toward central Istanbul. Activity is projected to intensify through evening and overnight.
Meteorological head Prof. Orhan Şen cautions: “Heavy rains, flash flooding, hail and sudden wind bursts may damage property and pose health risks.”
Added Insight & Traveler Tips by DIP
Context
Autumn weather in Istanbul can shift rapidly. This season’s storm systems are more intense, influenced by Atlantic fronts moving across Europe and dropping temperatures.
Hidden Hazards
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Flooding in underground passages, Metro, tunnels
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Transport system disruptions, major traffic delays
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Tree branches, debris falling from gusts
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Restricted access: some roads or coastal zones may close
Tips for Tourists
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Monitor local weather apps, alerts, official updates
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Avoid open spaces, coastal paths, bridges during storms
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Stay indoors in rooms with reinforced structures and secure windows
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Carry a flashlight or portable light source
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Reschedule outdoor tours for safer conditions; opt for indoor alternatives (museums, indoor markets)
