Twenty-six of the 59 reservoirs monitored at the end of February had availability above 80% of the total volume, while nine had values below 40%, according to data from the National Water Resources Information System (SNIRH).
According to the data, on the last day of February and compared to the last day of the previous month, there was a decrease in nine and an increase in the volume stored in three hydrographic basins.
The Barlavento Algarvio basin, with 13.1%, at the end of February had the lowest amount of stored water overall. The average storage for the month of February in the Barlavento basin is 73.8%, according to SNIRH.
With less water availability were also the Mira (36.8%), Arade (41.5%) and Sado (58.9%) basins.
The Guadiana (85.8%), Tagus (85.7%), Douro (80.7%), Oeste (80.2%), Cávado and Lima (78.1%), Mondego (66. 5%) and Ave (64.7%) had the highest levels.
February 2023 storages by hydrographic basin are higher than the February storage averages (1990/91 to 2021/22), except for the Ave, Mondego, Sado, Mira, Ribeiras do Algarve and Arade basins
Each hydrographic basin can correspond to more than one reservoir.