According to data from SNIRH, the amount of stored water decreased in August in 11 river basins and increased in one (Lima), compared to the last day of the previous month.
In the Barlavento Algarve river basin, the amount of retained water decreased from 19% in July to 16.7% in August. This basin continues to have the lowest amount of water reserves.
According to SNIRH data, the Arade basin was at 34.8% at the end of August (37.7% in July).
The amount of water also decreased in the Mira basin from 39.4% (in July) to 38.4% in August.
On the last day of August, the basins of Guadiana (79.5%), West (76.9%), Cávado (75.7%), Mondego (73.6%), and Douro (68.1%) had the highest water volumes.
The August 2024 storage levels by river basin were higher than the average August storage levels (1990/91 to 2022/23), except in the Lima, Tejo, Mira, Algarve Streams, and Arade basins.
Of the 58 monitored reservoirs, 10 had water availability above 80% of total volume, and 15 others were below 40%.
Each river basin may correspond to more than one reservoir.