Mumbai's western suburbs and southern areas received light and continuous unseasonal rainfall a little after 12.30 am on Monday, continuing through most of the night and afternoon, keeping skies cloudy and causing the mercury to dip nearly five degrees.

Mahesh Palawat, Chief Meteorologist at Skymet Weather, said that a low-pressure area formed over the east-central Arabian Sea over the past few days and has now weakened. But a cyclonic circulation persists, the trough from which is extending to the Western parts of Madhya Pradesh and across north Maharashtra and South Gujarat.