The city of Mumbai has seen the end of Southwest Monsoon for this year. Usually, Mumbai does not see any rains after the Southwest Monsoon unless there is a system that forms along the coast or in the Arabian Sea.
Similar is the case this time, wherein some light rains are all set to be seen in the city of Mumbai around October 15 and 16. A trough is extending along the West Coast right up to the Konkan region.
Also, an active Western Disturbance is expected to be seen around October 13, which will be affecting the mountains and the plains of North India. Thus, the trough along the coast and the circulation of the disturbance, possibly both these systems are getting aligned and will possibly give some light rains over Mumbai.
We do not expect anything disruptive and only light rains are expected over the city of Mumbai. This is quite an unusual event as Mumbai does not generally see rains after Monsoon departs from the city.