The reservation by areas is as follows:
- Eastern Cantabrian is 67.1%
- Western Cantabrian 61.4%
- 57.0% Miño-Sil
- Galicia Costa at 66.5%
- Internal basins of the Basque Country 66.7%
- Duero at 41.7%
- 34.7% cut
- Guadiana at 37.7%
- Red, Odiel and Stones 62.0%
- 45.5% Guadalete-Barbate
- Guadalquivir at 34.5%
- Andalusian Mediterranean Basin at 49.0%
- Safe at 26.4%
- Juice at 30.0%
- Ebro at 48.9%
- Inland basins of Catalonia at 58.6%
Precipitation has been abundant in the Atlantic slope and scarce in the Mediterranean slope. The maximum has been produced in Pontevedra with 129.9 mm (129.9 l / m²).
The situation of the basins, in cubic hectometers, is detailed in the following table:
Ministry for Ecological Transition