Greece Faces Deepening Water Crisis Amid Emergency Declarations

Greece is confronting a severe water crisis, with the islands of Patmos and Leros officially placed under a "red alert" status as of November 27, 2025. The capital region of Attica is expected to follow suit shortly, as the country grapples with critically low water reserves. The Regulatory Authority for Waste, Energy and Water (RAAEY) convened to assess the situation, which has deteriorated significantly, prompting immediate regulatory action to safeguard dwindling supplies.

Greece on “Red Alert” for Water Shortage as Reserves Drop 37%

The Athens Water Supply and Sewerage Company (EYDAP) reported alarming declines in reservoir levels, with combined reserves across key reservoirs—Evinos, Mornos, Yliki, and Marathon—standing at just 363.3 million cubic meters. This figure represents a 37% decrease from the 571 million cubic meters recorded in 2024. Lake Mornos, Attica's primary water source, has reached a record low of 157 million cubic meters, a 45% drop from the previous year. Satellite imagery indicates that the lake's surface area has shrunk by 44% compared to the 2016–2024 average, highlighting the severity of the situation.

Greece on “Red Alert” for Water Shortage as Reserves Drop 37%

In response to the crisis, local officials are empowered to access Public Investment Program funds for immediate interventions, including desalination projects. Petros Varelidis, the secretary-general for natural environment and water resources at the Ministry of Environment and Energy, assured that even with Attica's impending emergency status, residents would not face immediate disruptions, such as water rationing or tariff increases. The focus remains on fast-tracking essential infrastructure upgrades that have been delayed.

Greece on “Red Alert” for Water Shortage as Reserves Drop 37%

As the water crisis unfolds, financial pressures are mounting for EYDAP, which reported a €5.5 million loss over the past six months. The utility has been advocating for tariff increases to offset rising costs, a proposal that has been under consideration for two years. RAAEY is currently reviewing EYDAP's financials to determine allowable revenue, which could lead to incremental adjustments in water bills, projected to increase by €2–3 monthly.

Greece on “Red Alert” for Water Shortage as Reserves Drop 37%

Despite the regulatory measures, there are concerns regarding the long-term sustainability of water management in Greece. Critics argue that the government's response may be reactive rather than proactive, emphasizing the need for comprehensive water conservation strategies and infrastructure improvements to prevent future crises.

Greece on “Red Alert” for Water Shortage as Reserves Drop 37%

A definitive ruling from RAAEY regarding tariff adjustments and further regulatory measures is anticipated before the end of 2025. As Greece faces a drier future, the coming months will be critical in determining how effectively the country can innovate and adapt to its water challenges.

Greece on “Red Alert” for Water Shortage as Reserves Drop 37%

• “The red alert unlocks streamlined bureaucracy: Swift funding for emergency water infrastructure.” — Source

Greece on Water Watch: Leros and Patmos Hit Red Alert as Athens Braces for Crisis Until Friday

• “Varelidis emphasized that even if Attica joins the emergency list, residents will face no disruptions: no rationing of usage, no immediate tariff increases.” — Petros Varelidis, Secretary-General for Natural Environment and Water Resources

Greece on “Red Alert” for Water Shortage as Reserves Drop 37%

• “As Greece stares down a drier future, these red alerts aren’t just warnings; they’re wake-up calls for resilience.” — Source

Greece on Water Watch: Leros and Patmos Hit Red Alert as Athens Braces for Crisis Until Friday