Torrential rain flooded large parts of Istanbul on October 14-15, 2026, killing a 14-year-old boy and triggering more than 1,200 flooding incidents and 15 landslides. Authorities urged residents to stay home, avoid stream beds and basement flats, and warned that saturated soil raises the risk of further flooding and landslides as new rain approaches.
Heavy rain that began around 06:00 on October 14, 2026, caused widespread flooding across Istanbul, according to the city's Disaster Coordination Center (AKOM), cited by the Turkish news outlet Bianet. By 20:00 the same day, AKOM had logged 1,277 flooding incidents, 15 landslides and 47 cases of people stranded by rising water.
What happened
The downpour submerged roads, trapped vehicles and flooded homes and businesses on both the European and Anatolian sides of the city. Bianet reported that AKOM recorded 808 damaged homes, 280 damaged businesses and 76 damaged vehicles, along with roughly 2,500 emergency calls to AFAD, Turkey's disaster agency, and the 112 emergency line. Water also entered underpasses and some metro stations, disrupting transport, Bianet said.
Districts named by AKOM and other outlets as most affected include Beykoz, Sarıyer, Arnavutköy, Başakşehir, Sultangazi, Eyüpsultan, Esenyurt, Bayrampaşa, Gaziosmanpaşa and Çatalca, alongside flooding in the central district of Fatih, according to NTV and the Qatar-based broadcaster Al Jazeera.
Deaths and official response
A 14-year-old boy was electrocuted after stepping into a flooded puddle in Çukurbostan Park in the Balat neighborhood of Fatih, Al Jazeera and Bianet reported, citing Turkish authorities. The Turkish outlets NTV and Haberler additionally reported a second death, saying a 34-year-old person died after falling while trying to cross flood water in the Sarıyer district; Al Jazeera and Bianet's accounts, filed closer to the start of the disaster, cited only the one confirmed fatality.
Istanbul Governor Davut Gül urged residents to stay home on October 15 unless travel was necessary, told people living in basement flats to move to higher floors overnight, and advised against approaching stream beds and underpasses, Al Jazeera reported. The governor's office said about 8,000 personnel and 2,000 vehicles and construction machines, drawn from AFAD, the Istanbul Metropolitan Municipality and district municipalities, were deployed to respond to flooding and other emergencies. Schools in affected areas were suspended and motorcycle traffic was restricted, according to Al Jazeera.
Rainfall recorded by AKOM, October 14, 2026 (06:00-20:00)
Location
Rainfall (kg/m²)
Beykoz-Ömerli
193.84
Arnavutköy
125.90
Sarıyer-İTÜ Maslak
124.72
Çatalca
75.20
New warnings for the coming days
Turkey's State Meteorological Service issued orange-level warnings for six provinces — Bursa, Kocaeli, Sakarya, Yalova, Düzce and Zonguldak — and yellow-level warnings for 42 provinces, including Istanbul, according to Haberler.
CNN Türk meteorology consultant Orhan Şen told Hürriyet that conditions on October 15 were more dangerous than the previous day because the ground was already saturated after more than 200 millimeters of rain, meaning new precipitation cannot soak into the soil and instead pools on already flooded surfaces. He said a fresh weather system was expected to bring further rain starting Friday night, with unsettled conditions likely to continue for about a week.
Bugün dünden daha riskli. Cuma gecesi yeni bir yağış daha geliyor.
— Orhan Şen, CNN Türk meteorology consultant, to Hürriyet
NTV meteorologist Dilek Çalışkan said the saturated ground now poses a landslide risk in addition to flooding, particularly on sloped terrain, according to Haberler. Haberler also cited concern that commercial structures built along some of Istanbul's roughly 63 main waterways restrict drainage, intensifying both flood and landslide risks when heavy rain falls.
Background
Haberler described the October 14 rainfall as among the highest recorded in Istanbul since 1985, though exact peak figures varied slightly between outlets: NTV cited a maximum of roughly 242 kilograms per square meter in Beykoz, while AKOM data reported by Bianet put the highest total at 193.84 kilograms per square meter in the Beykoz-Ömerli area. Istanbul, a city of about 16 million people, has experienced repeated flash-flooding episodes in recent years during intense autumn storms.
Rain fell over Istanbul from 06:00 to 20:00 on October 14, 2026, causing 1,277 flooding incidents and 15 landslides, per AKOM figures cited by Bianet.
A 14-year-old boy died of electrocution in Fatih; NTV and Haberler also reported a second death in Sarıyer, not confirmed in earlier Al Jazeera/Bianet reports.
Governor Davut Gül urged residents to stay home and avoid basements, stream beds and underpasses.
About 8,000 personnel and 2,000 vehicles were deployed across the city, according to the governor's office.
Meteorologists warned that saturated soil raises landslide risk and that fresh rain was expected from Friday night.
Questions
How many people died in the Istanbul flooding?
A 14-year-old boy died after electrocution in a flooded puddle in Fatih's Balat neighborhood, confirmed by Al Jazeera and Bianet. Turkish outlets NTV and Haberler additionally reported a second death, of a 34-year-old person in Sarıyer, though this was not in the earlier international reports.
Which Istanbul districts were hit hardest?
AKOM and news outlets cited Beykoz, Sarıyer, Arnavutköy, Başakşehir, Sultangazi, Eyüpsultan, Esenyurt, Bayrampaşa, Gaziosmanpaşa, Çatalca and Fatih as the most affected areas.
What did officials tell residents to do?
Istanbul Governor Davut Gül urged people to stay home unless travel was essential, move from basement flats to higher floors, and avoid stream beds, underpasses and other flood-prone spots, according to Al Jazeera.
Is more rain expected in Istanbul?
Yes. Meteorologist Orhan Şen told Hürriyet a new weather system was due from Friday night, with unsettled, rainy conditions likely to continue for about a week, while the national weather service issued orange and yellow alerts for dozens of provinces including Istanbul.
Why are landslides an added risk now?
NTV meteorologist Dilek Çalışkan said the ground has become oversaturated with water, which increases the chance of landslides, especially in sloped parts of the city, according to Haberler.
How the world is telling it
TurkishTurkish outlets (NTV, Hürriyet, Haberler, Bianet) focused on hyper-local detail: exact rainfall totals by neighborhood, AKOM's real-time incident counts, named meteorologists' day-by-day forecasts, and a second reported death in Sarıyer, alongside criticism that structures built on waterways worsen flooding.
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