Central Asian states have reached an agreement on water allocations from the Amu Darya and Syr Darya rivers for 2026. The decision was made during the 91st meeting of the Interstate Coordination Water Management Commission (ICWC), held in Ashgabat on November 13, 2025, according to Kun.uz.

At the meeting, the countries agreed on how water resources will be managed during the 2025–2026 non-growing season, the period when agricultural demand is low. For the Amu Darya, the total allocation from October 2025 to October 2026 is set at approximately 55.4 billion cubic meters, with 15.9 billion cubic meters designated for the cold months from October through April. Under the agreement, Tajikistan will receive 9.8 billion cubic meters, while Turkmenistan and Uzbekistan will each receive 22 billion.

A key provision is that roughly 44 billion cubic meters of the Amu Darya’s flow must reach the Kerki hydrological station in Turkmenistan to sustain downstream areas. Additionally, 4.2 billion cubic meters is allocated to support the Aral Sea and the Amu Darya delta, with half to be delivered in winter and early spring. Another 800 million cubic meters will be used for irrigation in Dashoguz, Khorezm, and Karakalpakstan. These allocations are crucial for both communities living in water-scarce regions and for preserving fragile river ecosystems.

For the Syr Darya, the total allocation for the non-growing season is 4.219 billion cubic meters. Of this, Uzbekistan will receive the majority share, 3.347 billion cubic meters. Kazakhstan will receive 460 million cubic meters through the “Dustlik” canal, Tajikistan 365 million, and Kyrgyzstan 47 million. These figures are based on projected river inflows, reservoir capacities, and the need to maintain ecological flows.

The ICWC also approved operational plans for key reservoirs. In Tajikistan, the Nurek Reservoir is expected to enter the non-growing season with 10.5 billion cubic meters and decline to around 9.7 billion by spring. The Tuyamuyun reservoir, located on the Uzbekistan–Turkmenistan border, will start with 4.5 billion cubic meters and reduce to 3.4 billion. Both will gradually release water to support irrigation and sustain the Amu Darya’s flow.

In the Syr Darya basin, total water volume in the Toktogul, Andijan, and Charvak reservoirs at the beginning of the season is approximately 10.6 billion cubic meters, slightly below average. Tajikistan’s Bahri Tojik reservoir is expected to contain 2.6 billion cubic meters, while Kazakhstan’s Chardara reservoir will hold about 1.65 billion. Collectively, the Syr Darya basin will have around 14.9 billion cubic meters of water at the start of winter, roughly 90% of the long-term seasonal average.

The 92nd ICWC meeting is scheduled to take place in Dushanbe, where officials will assess reservoir performance and water usage during the 2025-2026 season. The agenda will also include strategies to strengthen regional water security in the face of escalating climate pressures.