The rainfall that Mumbai received this weekend — between 8.30am Saturday and 8.30am Sunday — is likely the season's highest downpour in 24 hours, the India Meteorological Department said.
The suburbs received 82.8mm rainfall over 24 hours, while the island city recorded 27.4mm during the same period.
The downpour was a result of quick cloud formation at night, said NY Apte, deputy director general, IMD, western region.
"The rainfall between Saturday and Sunday was probably the season's highest in the city," he said.
The downpour comes after a prolonged dry spell and disrupted suburban services on the Central Railway on Sunday. Two people sustained minor injuries after a wall collapsed at Jai Shastri Nagar in Mulund.
Though Sunday was mostly overcast with a steady drizzle and occasional showers, the rainfall recorded between 8.30am and 5pm was only in single digits. The lake levels have registered only a marginal rise.
Officials predict that the city is likely to witness occasional showers over the next 48 hours. "Other regions in the state could also witness heavy rainfall. Marathwada and Vidharba region are likely to get heavy rain. We also expect the monsoon to pick up in Konkan and Goa by next week," Apte said.