A Mumbai International Airport Ltd. spokesperson said that on account of fluctuating visibility issues, there were no flight movements for at least 20 minutes till 9.31 a.m.
Alhough there were no cancellations, at least three flights were diverted to other airports, five go-arounds and delays of 30-45 minutes.
In a special bulletin, the IMD here has placed Mumbai and north-Konkan on 'red alert' for extremely heavy to very heavy rains over the next 24 hours.
Raigad, Thane and Palghar will have similar weather conditions on Tuesday, while Mumbai will experience heavy downpour on Mondayy, and Ratnagiri and Sindhudurg will witness heavy to very heavy rain till Friday.
In a different rain-related incident, eight persons were hurt when a ground-plus one floor tenement crashed in Shivaji Nagar.
While three women are admitted to Rajawadi Hospital, five others were already treated.
While road traffic was affected with snarls at various locations, suburban trains were working normally.
Waterlogging was reported in various parts of the city and the adjoining Navi Mumbai suburbs with scores of vehicles stranded, people struggling to move around in knee-to-waist deep waters.
The IMD has warned fishermen not to venture into the Arabian Sea which will be very rough with high waves and wind speeds touching 40-50 kmph till Friday.
( With inputs from IANS )