Barcelona water reserves in the reservoirs supplying the region have recovered dramatically. Consequently, they now guarantee supply for at least a year and a half. Following months of persistent rain and snow, officials confirm that even without further rainfall, the region’s water needs are covered until summer 2027.
This abundance marks a sharp contrast to the critical drought experienced between 2022 and 2024. During the height of that crisis in early 2024, reservoirs plummeted to just 14% of their capacity. Therefore, the Generalitat declared an emergency and imposed strict consumption restrictions.
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Barcelona Water Reserves: From Emergency to Abundance
Today, the situation is radically different. The Ter and Llobregat reservoirs, which act as the primary taps for the Barcelona metropolitan area, currently stand at 94% of their maximum capacity. They hold 556 cubic hectometres (hm3) of water. In comparison, during the worst of the drought, they held a mere 87 hm3.
Specific data highlights the extent of the recovery:
- Ter system (Sau and Susqueda): 94.5% capacity.
- Llobregat system (La Baells, La Llosa del Cavall, Sant Ponç): 96% capacity.
The accumulation of water has been continuous, particularly since December 2025. Meanwhile, the influx has been so substantial that authorities have released excess water in recent weeks to manage dam levels safely.
Josep Lluís Armenter, director of the Catalan Water Agency (ACA), offered a reassuring outlook. He stated, “We will get through this summer and the next without a complicated situation. In the worst-case scenario, we will not enter an alert. In a pessimistic and very conservative scenario, we should not have any restriction problems until the summer of 2027.”
Strategic Management of Barcelona Water Reserves
Despite the abundance of surface water, the ACA is maintaining a cautious approach to water management. This strategy ensures long-term security. While the emergency reuse of regenerated water from the El Prat plant is no longer necessary, desalination plants in Blanes and El Prat continue to operate at 60% capacity.
This strategy is designed to allow underground aquifers to recover. During the drought, the deep aquifer in the Llobregat delta was subject to massive extraction. Consequently, well levels dropped to nine metres below sea level and invited seawater intrusion.
“We have relaxed the extraction from the wells so that the level rises; we have recovered eight metres, but now we need to recover the water quality, which still has high salinity,” Armenter explained.
Historic Rainfall Replenishes Reserves
The meteorological context for this recovery is historic. The Meteorological Service of Catalonia (Meteocat) has confirmed that rainfall recorded in December 2025 and January 2026 was the most abundant for that period since the mid-1990s.
Looking ahead, significant snowpacks in the mountains suggest further inflows as temperatures rise. In addition, planned improvements to the Besòs river infrastructure are expected to contribute new water sources throughout the year.
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