
After the heavy rain in Istanbul, which reached one of the highest levels seen since 1985, dam occupancy rates increased to 45.22 percent.
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The heavy rains in Istanbul in recent days have directly affected the dam levels.
After the heavy rain in Istanbul, dam occupancy rates increased from 38.06 percent to 45.22 percent. The occupancy rate increased by 7 points in one day. In the statement made by Istanbul Metropolitan Municipality, it was stated that the highest rainfall amounts of recent years were recorded in Istanbul, and it was reported that the amount of rainfall per square meter in some parts of the city reached 240 kilograms.
242 KILOGRAMS OF RAINFALL PER SQUARE METER IN BEYKOZ
According to the statement, the amount of rainfall per square meter in Istanbul was measured as 242 kilograms in Beykoz, 190.5 kilograms in Eyüpsultan and 187.9 kilograms in Sarıyer. The amount of precipitation per square meter, especially in the Bosphorus and the northern and central parts of the European Side, varied between 100 and 230 kilograms. In many parts of Istanbul, the amount of rainfall per square meter exceeded 100 kilograms. It was stated that the amount of rainfall recorded was one of the highest values seen since 1985.
DAM FULL RATE INCREASED BY 7.16 POINTS IN ONE DAY
Following intermittent rainfall, the dam occupancy rate, which was measured as 38.06 percent yesterday, increased to 45.22 percent today. Thus, an increase of 7.16 points in the occupancy rate was recorded in one day.
WATER LEVELS OF DAMS IN THE LAST 10 YEARS
According to İSKİ statistics, dam occupancy rates as of October 15 are 41.88 percent in 2016, 53.17 percent in 2017, 53.95 percent in 2018, 45.86 percent in 2019, 33.21 percent in 2020, 47.7 percent in 2021, 2022 percent. While it was 44.56, 21.69 percent in 2023, 34.74 percent in 2024, 24.96 percent in 2025, today's rate is recorded as 45.22 percent.

There were floods in Istanbul, Yalova, Kocaeli, Sakarya, Muğla and Antalya due to heavy rains, and a child died due to electric current. Energy and Climate Expert Önder Algedik stated that disasters are caused by zoning decisions and concreting rather than the climate crisis.

Istanbul Governor Davut Gül announced that 2 people lost their lives due to the heaviest rainfall in 84 years, and that public school holidays with administrative leave will continue tomorrow as well.

2 people lost their lives due to the heavy rain in Istanbul, which exceeded 273 kilograms per square meter in some regions. Deputy Mayor of Istanbul Metropolitan Municipality, Nuri Aslan, announced that interventions are continuing with thousands of personnel and vehicles.

Citizens stranded in the flood caused by heavy rain in Istanbul Sarıyer Ayazağa are being rescued by the work of the teams with boats and work machines. Some citizens said they were stranded for hours.

The authorities' warnings were met due to the heavy downpour and storm that lasted for 34 hours in Istanbul; In the morning, traffic density decreased below 40 percent and the closed roads were opened to traffic.
The highest rainfall of recent years was recorded in Istanbul; While 242 kilograms of precipitation per square meter fell in Beykoz, this rate was one of the highest values seen since 1985 and the dam occupancy rate increased by 7.16 points in one day.