According to data from Iran’s Meteorological Organization, from September 23 to November 28, the country’s average rainfall reached 3.9 millimeters, which represents an 88.3% decrease compared to the long-term average of 33.5 millimeters.
The state-run ISNA news agency wrote on Sunday, November 30, citing the Meteorological Organization, that no rainfall was recorded in the country during the seven days leading up to November 28.
Given the long-term average of 6 millimeters of rainfall for this period, precipitation has experienced a significant 99.3% decline compared to previous years.
Number of Water Wells in Iran 2.5 Times Greater Than All Middle Eastern Countries Combined
ISNA added that since the beginning of the current water year, “rainfall in all provinces has been below normal, and four provinces—Bushehr, South Khorasan, Qom, and Yazd—are experiencing the worst conditions, as they have received 100% less rainfall than normal during the current water year.”
The water year in Iran begins on September 23 (the first day of autumn).
In recent days, new dimensions of Iran’s water shortage crisis have emerged, sounding a serious alarm for daily life and the continued operation of many industries.
Ali Bitollahi, head of the Earthquake Engineering and Risk Department at the Road, Housing, and Urban Development Research Center, described the current water crisis on November 24 as “very serious” and warned that without proper management, the lives of a large number of citizens will be at risk.
He added that autumn 2025 has been unprecedented in terms of rainfall over the past five decades and has been recorded as the “driest autumn in the country” during this period.
A 97.4% decrease in rainfall in Tehran Province
ISNA further reported that Tehran Province is also among the regions with low precipitation.
Based on long-term data, the province’s average rainfall is estimated at 46.9 millimeters, but in the current water year only 1.2 millimeters have been recorded, indicating a 97.4% decrease.
The same agency reported on November 29 that as the water crisis deepens and the government fails to manage resources, parts of Tehran—especially District 18—have entered a phase of “rapid subsidence.”
According to the report, Iran is in the midst of one of the most complex periods in its water history, and the drying of wetlands, unprecedented drops in humidity, reduced cloud cover, and intensified land subsidence paint an alarming picture of the country’s climatic future.
The state-run Mehr News Agency wrote on November 29 that due to last year’s drought, wheat production in Iran dropped by more than 30%.
According to the report, Iran is experiencing its most severe drought in decades, and this crisis could lead to the potential evacuation of Tehran and threaten the stability of the government.
Through excessive dam construction, failure to modernize agricultural practices, placing water-intensive industries in arid regions, and chronic mismanagement, Iran’s regime has pushed this crisis to a point of no return.
