The reservation by areas is as follows:
- Eastern Cantabrian is 78.1%
- Western Cantabrian 65.4%
- 57.0% Miño-Sil
- Galicia Costa at 75.1%
- Internal basins of the Basque Country 76.2%
- Duero 42.7%
- 34.8% cut
- Guadiana at 37.6%
- Red, Odiel and Stones 62.0%
- Guadalete-Barbate at 45.1%
- Guadalquivir at 34.4%
- 48.5% Andalusian Mediterranean Basin
- 26.2% safe
- Juice at 35.2%
- Ebro at 52.3%
- Inland basins of Catalonia at 58.6%
Precipitation has greatly affected the entire peninsula. The maximum has been produced in San Sebastián-Donostia with 207.5 mm (207.5 l / m²).
The situation of the basins, in cubic hectometers, is detailed in the following table:
Ministry for Ecological Transition