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India Jun 22, 2025

Unusual monsoon patterns in South Mumbai

Mumbai's southwest monsoon showed up super early this year—on May 26, the earliest in 75 years.
Since then, Colaba in South Mumbai has been drenched: it got 504mm of rain in May (the most since 1918) and saw a huge downpour of 146mm in just one day on June 19—the highest for a June day since 2023 and the second highest in the last seven years.

TL;DR

Nearly a meter of rain already in Colaba

Colaba has actually out-rained the suburbs for once, flipping the usual trend.
Meteorologists say it's because strong monsoon winds and an offshore trough are funneling extra moisture straight to South Mumbai.
With nearly a meter of rain already, there's more risk of flooding and pressure on city infrastructure.
The IMD has put out yellow alerts for Mumbai and orange alerts for Raigad, so expect more wet days ahead.