Cyprus Water Crisis 2026: What the Dam Levels Tell Us

Cyprus is in the grip of its worst drought since records began in 1901. As of late February 2026, the island's 17 major reservoirs hold barely 14% of their combined capacity — a number that has been falling steadily for months with no significant rainfall in sight.

The numbers at a glance

The total storage across all dams sits at roughly 46 million cubic metres (MCM) out of a combined capacity of approximately 327 MCM. To put that in perspective, the system was designed to sustain the island's agricultural, industrial, and domestic water needs when dams are at least 40% full. At 14%, every reservoir is deep into critical or warning territory.

The largest dam, Kouris, which alone accounts for over a third of the island's total dam capacity at 115 MCM, has dropped to critically low levels. Asprokremmos, the second largest at 52 MCM capacity, tells a similar story. Even smaller dams like Evretou and Kannaviou that tend to hold up better in mild droughts are now well below the 20% critical threshold.

What does 14% capacity actually mean?

Dam capacity is measured as a percentage of the reservoir's maximum design volume. When engineers describe a dam as being at 14%, they mean the water physically stored is 14% of what the reservoir could hold if full to its spillway crest.

Below 20%, a dam enters what hydrologists call the critical zone. In this range:

Evaporation losses accelerate — shallower water bodies have a higher surface-to-volume ratio, meaning a larger proportion of the remaining water evaporates.
Water quality degrades — sediment concentration increases, making treatment more expensive.
Dead storage approaches — every dam has a "dead storage" volume below the lowest outlet. Water trapped here cannot be extracted. Some of Cyprus's smaller dams are already at or near this point.
Supply cuts become unavoidable — the government has already announced restrictions for 2026, including reduced agricultural allocations and rotating municipal supply schedules.

Why is this happening?

Cyprus has always been water-scarce. The island receives an average of 460mm of rainfall per year — roughly half the European average — and most of it falls between November and March. But the 2024-2026 period has been exceptional even by Cypriot standards.

Three factors are compounding the crisis:

Climate change: The eastern Mediterranean is warming faster than the global average. Winter rainfall has been declining for decades, and evaporation is increasing. The 2025-2026 winter delivered barely a third of normal rainfall.
Increased demand: Cyprus's population has grown by 20% since 2000, driven by tourism and immigration. Tourism alone accounts for roughly 10% of total water consumption during peak summer months.
Ageing infrastructure: Several dams have lost significant capacity due to sedimentation over the decades. For instance, some of the island's reservoirs hold 10-15% less water than their original design capacity due to accumulated silt.

What comes next?

Cyprus is not entirely dependent on surface water. The island operates several desalination plants that provide roughly 70% of domestic drinking water supply. These plants can partially compensate for low dam levels, but they are energy-intensive and expensive to run at full capacity.

The government's response has so far included:

Agricultural water cuts: Irrigation allocations from dams have been reduced, with some areas receiving no dam-sourced irrigation water at all.
Awareness campaigns: Public messaging encouraging shorter showers, fixing leaks, and reducing garden watering.
Desalination ramp-up: Existing plants are running at or near full capacity, with plans for additional capacity being accelerated.

Track the data yourself

Nero provides live data for all 17 major dams across Cyprus, updated every 6 hours from the Water Development Department's public records. You can explore individual dam trends on pages like Kouris, Asprokremmos, and Evretou, or see the full picture on the dashboard.

The interactive map shows the geographic distribution and current severity level of every dam at a glance.

We will continue publishing analysis and updates as the situation develops. This drought is not just a weather event — it is a structural challenge that will shape Cyprus's water policy for decades to come.