Water reserves in Ibiza and Formentera have increased again in December, consolidating the recovery trend that began in November and allowing to keep both islands out of the drought alert scenario, according to the latest data released by the Ministry of the Sea and Water Cycle of the Balearic Government. Ibiza reaches 48% of reserves and Formentera is in a normal situation, in a context marked by a particularly wet month in the whole archipelago.
Positive development after historic lows in the fall
In the case of Ibiza, the level of reserves has risen from 47% to 48% in December, a moderate but significant rise that confirms the improvement initiated after the heavy rains of October, when the island managed to get out of the drought alert situation after months at historic lows. As reported by La Voz de Ibiza, the dana ‘Alice’ was key to boost aquifers after a critical period. That month saw an increase from 26% to 39% of water reserves.
This progress allowed Ibiza to officially abandon the drought alert at the end of November, placing it in pre-alert, a scenario that is maintained at the beginning of winter.
Formentera consolidates water normality
Formentera remains among the territories with the best water situation, forming part of the 23% of the archipelago that is in a normal situation, together with Migjorn and Manacor-Felanitx. The island has also recorded an increase in its reserves, benefiting from a rainier than usual autumn and early winter.
Overall, the demand units of Ibiza and Formentera are among those that have experienced a positive evolution during December, according to official data from the Balearic Government, which reinforces the stability of supply for the first months of 2026.
A wetter than usual December
The increase in reserves is directly related to rainfall. December has been a wet month in the Balearic Islands, with an average of 88.9 liters per square meter, well above the usual values. In Ibiza 78.5 l/m² were recorded and in Formentera 53.8 l/m², figures above the historical average for the period.
In addition, the percentage of interannual precipitation in the Pitiusas reached 137%, which explains the progressive recovery of the aquifers after a particularly dry summer.
A still fragile context in spite of improvement
Despite the favorable evolution, the situation remains contained at the Balearic level. The overall index of the Hydrographic Demarcation stands at 0.421, below the values recorded one and two years ago, which makes it necessary to maintain caution. 60.8% of the Balearic territory remains in pre-alert, including Ibiza, while only a limited part has reached normality.
The Balearic Government stresses that forecasts for January point to a new increase in bookings, although no relevant changes are expected in the short term, beyond the possible consolidation of the improvement in some demand units.
