According to weather officials, Colaba (south Mumbai) recorded 21 mm rain, while Santacruz (north Mumbai) recorded rainfall of 75 mm till 9 a.m. Thursday.
Rail and road traffic was hit as trains were running late by 15-30 minutes. Most arterial roads of the city were flooded with water, making it equally difficult for vehicles and pedestrians to commute.
Making a late entry against the predicted date of June 10, rainfall in the city Thursday left many areas of northwest Mumbai like Khar, Jogeshwari, Bandra, Goregaon, and Malad waterlogged.
The weather department has issued a warning for heavy rainfall in the next 24 hours in the city as well as the coastal region of Mumbai and Konkan.
The city's maximum temperature was 30 degrees Celsius, while the minimum temperature recorded was 27 degrees Celsius.
Mumbai has been facing a severe water crisis after the monsoon skipped its regular date of June 10 this year.
The Brihanmumbai Municipal Corporation (BMC) had warned that the city with a population of nearly 18 million would face severe water shortages for the rest of the year if monsoon fails.
Continuous rain has left several low-lying areas in south Mumbai waterlogged and traffic snarls on the two main Express highways Thursday. Low-lying areas like Hindmata, Parel and Dadar are partially submerged in water.