Mumbai residents face another day of damp weather on September 18, 2025, marked by scattered showers and oppressive humidity that could disrupt routines. With temperatures hovering near 29°C and a strong likelihood of downpours ramping up later in the day, the metropolis is locked into its familiar monsoon rhythm, complete with potential flooding hazards.
Forecasts point to a range of 26.2°C to 29.2°C under mostly overcast skies, an average of 27.7°C, and winds gusting to 16.9 km/h. Patchy rain is on the cards all day, with a 91% probability and humidity at 77%, turning the air thick and uncomfortable. The afternoon commute looks especially tricky as showers intensify, though evenings may cool off into a misty chill.
Air quality held steady at a moderate AQI of 55 on Wednesday, according to AQI.in, signaling standard levels for the season’s rainy spell. Key pollutants included PM2.5 at 23 µg/m³ and PM10 at 54 µg/m³, while carbon monoxide spiked to 406 µg/m³enough to mildly bother those with breathing issues, particularly in bustling traffic zones. Yesterday’s readings reflect a modest uptick from the prior week, and today’s rains might scrub some particulates from the atmosphere, though low-lying spots could see backups during rush hours.
For those plotting their day, early hours offer a brief respite with only light drips, ideal for quick errands under an umbrella. But by midday, waterproof gear becomes essential for travel, and indoor options suit the night better. Masks remain wise in packed venues amid the fair pollution outlook.
Looking ahead, the week stays soaked. Expect heavy deluges on September 19, pushing highs to 28.8°C, followed by spotty precipitation on the 20th at 28.9°C. Lighter showers persist through September 21 and 22, with peaks from 28.8°C to 29°C, before easing into intermittent drizzles on the 23rd and 24th, temperatures fluctuating between 26°C and 29°C.
These muggy patterns, barely eased by soft breezes, underscore Mumbai’s enduring monsoon grip, where steady rains both cleanse the air and challenge the streets.
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