According to the information compiled by the AA correspondent from the 2026 Water Year 12-Month Spatial Cumulative Precipitation Report of the Ministry of Environment, Urbanization and Climate Change, General Directorate of Meteorology, an average of 741.6 kilograms of precipitation per square meter fell across Turkey in the 12-month period covering 1 October 2025-30 September 2026.
Türkiye's water year rainfall normal was recorded as 573.4 kilograms per square meter, and the 2025 water year rainfall amount was recorded as 422.5 kilograms.
Thus, the 2026 water year precipitation increased by 76 percent compared to the same period last year and by 29 percent compared to the long-term average, reaching the highest level in the last 66 years.
While rainfall decreased by up to 20 percent compared to normal in Edirne, Tekirdağ, Kırklareli, Bursa, Kastamonu, Malatya, Gümüşhane, Rize, Artvin, Erzurum and Bayburt, it increased by over 60 percent in Ayvalık, Antalya, Mersin, Siirt, Şırnak, Van and Hakkari.
Regional precipitation was above normal and last year in all 7 geographical regions of Türkiye.
Water year precipitation reached its highest level in the last 66 years in the Mediterranean Region, in the last 38 years in the Eastern Anatolia Region, in the last 15 years in the Central Anatolia Region, in the last 11 years in the Aegean Region and in the last 10 years in the Black Sea Region.
In the Southeastern Anatolia Region, water year rainfall exceeded 3 times that of last year.
Rainfall in Şırnak increased by 80 percent compared to normal
The highest amount of rainfall throughout the province was recorded in Rize with 1641 kilograms per square meter, and the lowest amount was recorded in Iğdır with 396.1 kilograms.
Water year precipitation was below normal in Artvin and Tekirdağ, around normal in Bursa, Edirne, Kastamonu and Rize, and above normal in other provinces.
The highest increase in precipitation compared to normal was seen in Şırnak with 80 percent.
The highest rainfall level of the last 66 years was reached in Adana, Amasya, Düzce, Giresun, Hatay, Isparta, İzmir, Kahramanmaraş, Kayseri, Manisa, Niğde, Ordu, Osmaniye, Samsun, Tokat and Yozgat.
The highest water year rainfalls were recorded in Bingöl, Bitlis, Erzincan, Sivas and Tunceli in the last 38 years, in Muş in the last 31 years, and in Gaziantep in the last 30 years.
There was an average of 118.7 days of rainfall throughout Türkiye in the 2026 water year. The number of rainy days was 18 percent above the long-term average of 100.2 days.
The highest rainfall level of the last 66 years was seen in the Mediterranean
According to regional data, the regions where precipitation increased the most compared to normal were the Mediterranean and Southeastern Anatolia regions, with 45 percent.
In the Mediterranean Region, 967.1 kilograms of precipitation per square meter fell in the 2026 water year. The region's water year rainfall normal was recorded as 665.1 kilograms, and the rainfall in the same period last year was recorded as 460.6 kilograms.
Thus, precipitation in the Mediterranean increased by 45 percent compared to normal and more than 100 percent compared to last year, reaching the highest level in the last 66 years.
While 773 kilograms of precipitation per square meter fell in the Southeastern Anatolia Region, the precipitation increased by 45 percent compared to the normal of 533.9 kilograms. In the region where 248.8 kilograms of precipitation per square meter was recorded last year, the amount of precipitation was more than 3 times.
709.9 kilograms of precipitation per square meter was recorded in the Eastern Anatolia Region. Precipitation increased by 32 percent compared to normal and 76 percent compared to the same period last year, reaching the highest level in the last 38 years.
In the Central Anatolia Region, 521.6 kilograms of precipitation per square meter fell. While rainfall in the region increased by 30 percent compared to normal and more than 100 percent compared to last year, the highest rainfall level was observed in the last 15 years.
The highest rainfall of the last 11 years in the Aegean and the last 10 years in the Black Sea was recorded
Water year precipitation in the Aegean Region was measured as 765.2 kilograms per square meter. Precipitation increased by 27 percent compared to the normal of 604.7 kilograms and by 75 percent compared to the same period last year. The highest water year rainfall was recorded in the region in the last 11 years.
823.9 kilograms of precipitation per square meter fell in the Black Sea Region. This amount was 18 percent above the normal of 697 kilograms and 23 percent above the 672.5 kilograms recorded last year. Thus, the highest rainfall level in the last 10 years was reached in the region.
In the Marmara Region, 738.5 kilograms of precipitation per square meter was recorded. Rainfall increased by 10 percent compared to the normal of 670 kilograms and by 68 percent compared to the 439.7 kilograms recorded in the same period last year.
