Spain’s reservoir reserves fall to 57.2% of capacity
Reservoirs held 32,062 cubic hectometres of water on 20 October, equal to 57.2% of Spain’s total capacity, according to the environment ministry. Storage fell by 352 cubic hectometres over the week.
AI-generated symbolic illustration. No actual dam, measured storage level or completed groundwater-recharge work is depicted. · Agriculture / Haber Paper
Story details
The Ministry for the Ecological Transition and the Demographic Challenge (MITECO) reported that Spain’s water reserves stood at 57.2% of total reservoir capacity on 20 October. Reservoirs contained 32,062 hm³, a weekly decline of 352 hm³, equivalent to 0.6% of the country’s total reservoir capacity.
Conditions varied by basin. The Ebro stood at 44.9% and the Duero at 46.5%, while Catalonia’s internal basins were at 73.0% and the Guadiana at 71.8%. MITECO said rainfall during the week was heavier on the Mediterranean side than on the Atlantic side; the maximum recorded was 59.6 millimetres in Castellón.
HABER PAPER / DATA
Behind the numbers
Inspect the source, read the data, make your own analysis.
Indicators
Spain reservoir fullness by basin
National total and selected basins in the 20 October 2026 bulletin; each percentage uses its own capacity.
Spain: total
57.2 percentData period: 2026-10-20 · Observed
Ebro basin
44.9 percentData period: 2026-10-20 · Observed
Duero basin
46.5 percentData period: 2026-10-20 · Observed
Catalonia internal basins
73.0 percentData period: 2026-10-20 · Observed
Guadiana basin
71.8 percentData period: 2026-10-20 · Observed
Source and methodology
Haber Paper source-linked editorial data compilation; underlying sources retain their separate reuse terms.
Reproduce MITECO’s storage-to-capacity ratios; these are stocks relative to capacity, not flows or annual use. Do not add the national total and its basin components; basin capacity denominators differ. The weekly decline of 352 hm³ and rainfall measures are not mixed into this comparison.
The Ministry for the Ecological Transition and the Demographic Challenge (MITECO) reported that Spain’s water reserves stood at 57.2% of total reservoir capacity on 20 October. Reservoirs contained 32,062 hm³, a weekly decline of 352 hm³, equivalent to 0.6% of the country’s total reservoir capacity.
Conditions varied by basin. The Ebro stood at 44.9% and the Duero at 46.5%, while Catalonia’s internal basins were at 73.0% and the Guadiana at 71.8%. MITECO said rainfall during the week was heavier on the Mediterranean side than on the Atlantic side; the maximum recorded was 59.6 millimetres in Castellón.
Spain’s agriculture ministry distributed €50.17 million from the EU agricultural reserve to regions to support farms affected by higher fertiliser and energy costs. A further €19.1 million was assigned to animal-health programmes.
Source: Ministerio de Agricultura, Pesca y Alimentación (MAPA)
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