During the first 10 months of the 2026 water year – from Oct. 1, 2025 to July 31, 2026 – rainfall across Türkiye was 30% above the long-term average and 76% higher than the same period last year, reaching its highest level in 66 years.
According to data compiled by Anadolu Agency (AA) from the Turkish State Meteorological Service’s 10-Month Areal Precipitation Report for the 2026 Water Year, Türkiye received an average of 693 kilograms (1,528 pounds) of rainfall per square meter during the period.
The long-term water-year average, calculated using data from 1991 to 2020, is 533.7 kilograms (1,176.61 pounds) per square meter, while 393.2 kilograms (866.86 pounds) was recorded during the same period last year.
Rainfall during the first 10 months of the 2026 water year was therefore 30% above normal and 76% higher than a year earlier, making it the wettest 10-month period in 66 years.
Compared with the long-term average, rainfall fell by up to 20% in areas around Tekirdağ, Bursa, Yalova, Kastamonu, Malatya, Gümüşhane, Bayburt, Trabzon, Rize, Artvin, Ardahan and Erzurum. In some areas around Siirt, Şırnak and Van, rainfall increased by more than 80%.
