Mumbai Monsoon News | Monsoon Arrives In Mumbai, Earliest Onset In 75 Years, Says Weather Office Monsoon In Mumbai Latest: Mumbai experienced its earliest monsoon arrival in 75 years, leading to a red alert for the city and its suburbs. Heavy rainfall has resulted in widespread waterlogging, disrupted air, rail, and road traffic, and flooded hospitals. Even the newly-inaugurated Worli Metro station faced flooding and roof leaks. NDTV's Sujata Dwivedi brings you all the latest updates from the ground.