Ever wondered why Mumbai suddenly feels like summer in October? ☀️
It is actually a combination of things.
October marks the transition from the southwest monsoon to the post monsoon season. As the rains retreat, cloud cover reduces and the city gets more direct sunshine. At the same time, Mumbai still has high humidity because of its location along the Arabian Sea.
Then there is the changing sea breeze. During the monsoon withdrawal, wind patterns can change and a delayed or weaker sea breeze can allow temperatures to rise further.
And Mumbai itself adds to the problem. Concrete, roads and buildings absorb and retain heat creating what is known as the urban heat island effect.
This October showed just how intense it can get. On October 2, Colaba recorded 37.4°C, around 5.6°C above normal and its highest October temperature in at least 13 years.
Research also suggests that humid heat during the post monsoon period is becoming a growing concern along India’s west coast.
So the next time you say “October mein itni garmi kyun hai?” now you know. 🥵
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Kurla, Mumbai suburban | Oct 8, 2026