Mumbai's lake levels decline; 95.50% water stock recorded as monsoon withdraws. Mumbai's seven lakes held 95.50% of their total useful storage capacity as of 6 am on Sunday, down from 95.84% a day earlier, according to BMC. The decline came even as the southwest monsoon withdrew from Mumbai on Saturday, five days ahead of the normal date. The current storage is lower than the corresponding figures recorded in 2025 and 2024.