September 2026 Weather in Mumbai
“Mild and bright — an underrated time to visit.”
Roughly 27 rainy days across the month, on average.
September carries Mumbai through the tail of monsoon with 434mm of rain across 27 days and highs of 28.5°C (83.3°F). Lows soften to 25°C (77°F), and daily sunshine climbs back to 8.2 hours. Storms grow less continuous, gaps widen, and mid-month sees the first genuinely fine sunset walks along Marine Drive of the season.
Ganpati climaxes in early-to-mid September 2026 with the 11-day festival's largest immersion processions filling Girgaon Chowpatty, Juhu Beach, and Versova with massive Ganesh idols carried on trucks and shoulders. Alongside Ganpati, Onam celebrations bring Malayali community feasts, and Elephanta caves ferries begin to resume mid-month as sea conditions improve.
Records from 2015 to 2025 show September rainfall averaging near 400mm with high year-to-year variability. Ganpati timing shifts by roughly two weeks depending on lunar calendar. Modeling for 2026 leans toward slightly wetter conditions with the immersion week falling around September 5-10.
Travelers in 2026 should book Ganpati-week hotels early and study specific procession routes. Waterproof gear remains essential through mid-month, but late-September travel gets progressively easier. September 2026 offers a strong combination of festival immersion and gradually returning weather, with lower peak-season pricing than October onwards.
Mumbai lives on the local train and knowing north-south from Churchgate to Virar is basic literacy. Bandra is the influencer strip, Colaba is heritage and Leopold, Dadar is the real Marathi middle. Vada pav at Ashok Vada Pav in Kirti College is the actual best; Trishna in Fort for crab, Bademiya seekh kebabs behind Taj at midnight. Dabbawalas still deliver 200000 lunches at Six Sigma accuracy, and monsoon changes the entire commuting geography.
What to pack for Mumbai in September
September needs monsoon-ready gear plus lighter options for month's end:
- Waterproof jacket with hood
- Quick-dry shirts and trousers plus one light dress-shirt
- Waterproof sandals or rugged shoes
- Compact umbrella and dry bag
- Light cotton tops for the drier final week
What to pack for Mumbai in September
- →Quick-dry travel shirtAmazon · shop this
- →UPF sun hatAmazon · shop this
- →Packable rain jacketAmazon · shop this
- →Compact travel umbrellaAmazon · shop this
- →Waterproof dry bagAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
We may earn a small commission on any purchase — it doesn't change the price you pay.
Where to stay in Mumbai
We don't review individual hotels — plenty of people do that well. What we do is send you to compare rooms in Mumbai across trusted platforms.
Compare hotels on Booking.com→Estimated September trip to Mumbai
Shoulder-season pricing — a balance of price and conditions. Rule-based estimates from a couple based in London — actual prices vary.
We may earn a commission if you book through these links, at no cost to you. Estimates use rule-based averages; check partner sites for live pricing.
Delayed flight to Mumbai?
September sees 434mm of rain here — delays happen. Check if you're eligible for compensation. EU regulations cover flights departing from or arriving in the EU/UK.
Check compensation eligibility →Free check · Only pay if you get paid · Powered by Compensair.
Plan your Mumbai trip
Handpicked services from partners we trust. One tab for everything you'll need after the flight is booked.
Compare rooms in Mumbai on Booking.com.
Skip-the-line tickets, day trips, food walks and guided tours.
Compare fares with cashback on every booking.
Instant data on arrival — no roaming charges, no SIM swap.
Flexible monthly coverage for trips of any length.
Compare 900+ rental brands with free cancellation.
Book a driver in advance — fixed price, no queue.
We may earn a commission if you book through these links, at no cost to you.
Things worth doing
Watch Ganpati Visarjan at Chowpatty, Onam feasts, indoor Museum days, Elephanta ferry late-month, monsoon-menu dinners, storm-watch Marine Drive.
September vs. the rest of the year
How this month compares in Mumbai. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit Mumbai
While September has its own character in Mumbai, the data-backed best months to visit Mumbai are January. These months combine the most favourable temperatures, rainfall, and sunshine across an 11-year climate record (2015–2025).
See the full best-time-to-visit guide for MumbaiOther places with a similar climate right now
Mumbai in September — FAQ
Q01Should I visit Mumbai in September?
Should I visit Mumbai in September?
It is a challenging month — you may want to consider another time of year. In September, Mumbai averages a high of 29°C (83°F) and a low of 25°C (77°F), with 434mm of rainfall across roughly 27 rainy days. November-February post-monsoon window brings Kala Ghoda arts festival in February and marine drive walkable at sunset before March pre-monsoon humidity chokes the city.
Q02What temperatures should I expect in Mumbai during September?
What temperatures should I expect in Mumbai during September?
The average high temperature in Mumbai during September is 29°C (83°F), with an average low of 25°C (77°F). These figures are averaged from 11 complete years of daily records (2015–2025, Open-Meteo Archive).
Q03Is September a rainy month in Mumbai?
Is September a rainy month in Mumbai?
Mumbai averages approximately 27 rainy days in September, with a total monthly rainfall of about 434mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days. July-August delivers 800mm in weeks; the 26/7 flood is still local memory, Sion and Dadar submerge, and local trains stop when tracks flood.
Q04How should I dress for Mumbai in September?
How should I dress for Mumbai in September?
For Mumbai in September, pack light, breathable clothing (cotton or linen), a compact umbrella or waterproof jacket, sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on 11 complete years of weather averages for this specific month. Slip-on shoes you can rinse: monsoon puddles hide potholes and every temple requires footwear removal anyway.
Q05Is September a busy travel month for Mumbai?
Is September a busy travel month for Mumbai?
Tourist crowds in Mumbai during September are typically moderate — shoulder season, a sweet spot between crowds and weather. Consider this when planning accommodation — prices track crowd levels closely. Mumbai lives on the local train and knowing north-south from Churchgate to Virar is basic literacy. Bandra is the influencer strip, Colaba is heritage and Leopold, Dadar is the real Marathi middle. Vada pav at Ashok Vada Pav in Kirti College is the actual best; Trishna in Fort for crab, Bademiya seekh kebabs behind Taj at midnight. Dabbawalas still deliver 200000 lunches at Six Sigma accuracy, and monsoon changes the entire commuting geography.