30 September 2026 Istanbul Dam Occupancy Rates Announced

In its updated statement, Istanbul Water and Sewerage Administration (ISKİ) shared the recent change in dam occupancy rates in Istanbul. So, what is the occupancy rate of Istanbul dam on September 30, 2026?

CURRENT DAM OCCUPANCY RATES 30 SEPTEMBER 2026

The water level in the dams that meet the daily water needs of millions of citizens in Istanbul continues its downward trend due to the effect of increasing temperatures and evaporation. According to the current official data shared by İSKİ (Istanbul Water and Sewerage Administration), the general average dam occupancy rate was measured as 38.32 percent in mid-September. On September 30, 2026, the dam occupancy rate in Istanbul was measured as 36.82 percent.

30 SEPTEMBER 2026 DAM FULL RATES

According to İSKİ's latest hydraulic measurements dated September 30, dam-based occupancy rates are as follows:

Ömerli: 48.94 percent

Stenosis: 54.42 percent

Elmalı: 65.17 percent

Terkos: 32.5 percent

Alibey: 33.25 percent

Büyükçekmece: 26.37 percent

Sazlıdere: 20.63 percent

Istrancalar: 22.35 percent

Kazandere: 11.93 percent

Papuçdere: 2.93 percent