Mallorca water reserves fall to 36% after dry September

Mallorca, in Spain’s Balearic Islands, sees its water reserves fall from 38% to 36% in September. Three areas of the island appear on drought alert in the detailed figures published by the Balearic Ministry for the Sea and Water Cycle on 10 October. Across the Balearics, reserves also stand at 36%, down from 38% in August and 44% in September 2025.

September rain falls short

Mallorca gets an average of 55 litres of rain per square metre in September, against the usual 65. On Eivissa, another Balearic island, just 10 litres fall per square metre against the usual 76; its reserves drop from 37% to 33%.

The ministry’s opening summary names four Mallorca areas on drought alert: Artà, es Pla, Manacor-Felanitx and Migjorn. Its detailed drought index lists only the first three. It places Migjorn at pre-alert, a level below alert.

Menorca’s reserves rise despite little rain

Menorca, also in the Balearics, gets just 3.4 litres of rain per square metre, far below its usual 60. Yet its reserves rise from 33% to 38%. The ministry says rain from earlier weeks or months can take time to reach underground water-bearing layers, known as aquifers. The amount of water drawn from them also affects reserve levels. Menorca remains at pre-alert.

The ministry expects a slight rise in reserves across the Balearics in October. It says it will keep a close watch on areas under drought alert and urges responsible water use.

Topics: Storms · Weather · Artà · Manacor · Felanitx · Palma · Alcúdia

Source: Europa Press / Mallorca.com