Su Ufku

İstanbul’s dams are well over half full. Latest reading: 9 November 2026, 11 hours ago. Source: İSKİ.

61.9%. In 30 days: 71–96%, most likely 83%

The most likely level a month ahead has moved up 2.6 points since yesterday morning (80%, now 83%). Main reason: the updated rain forecast.

There’s an 80% chance the level stays inside each range. Forecast issued on the morning of 9 November 2026, starting from the reading of 9 November 2026.

0%25%50%75%100%MeasuredForecastScenario69–81%71–96%60 days90 daysWetAverageDryrain61.9%1 Nov1 Dec1 Jan1 Feb0%25%50%75%100%MeasuredForecastScenario69–81%71–96%60 days90 daysWet87–100%Average86–100%Dry80–100%rain, 27 October – 3 NovemberToday 61.9%1 Sept1 Oct1 Nov1 Dec1 Jan1 Feb

Su Ufku: İstanbul’s dams. Details on Su Ufku