Mumbai, India — Weather in September 2026

Climate Overview

Mumbai, India in September has hot conditions, with highs reaching 28.4°C (83°F) and afternoons the warmest part of the day. Rain falls on about 26 days this month, totalling around 465 mm. Sea temperature reaches 29.3°C (85°F).

This month falls at the beginning of Autumn.

Temperatures remain fairly steady throughout September, with daily highs around 29°C (84°F).

September sees fairly even rainfall, totalling about 468 mm across the month.

The warmest days tend to fall around the 30th, averaging 29.3°C (85°F).

Compared to August, this month is about 1°C warmer with 4 fewer rainy days. Temperatures will rise further into October.

Monthly September Averages

Temperature

28°C / 25°C

Feels Like

34°C / 30°C

Rain

26 days · 465 mm

Sunshine

7.6h / day

Humidity

87% — Very Muggy

Wind

17 km/h

Wind Direction

WSW (250°)

Gusts

30 km/h

Daylight

12.2 h

Cloud Cover

81%

Clear Sky Days

0.1

UV Index

6.2 — High

Sea Temperature

29°C

Dew Point

24°C — Oppressive

Moon Phase

Waxing Crescent · 11%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:27

Daylight 12.3h

Sunset 18:43

What to Expect

Daytime temperatures around 28°C (83°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain most often builds later in the day, so mornings are typically the driest window and afternoon showers are more likely.

Recent yearly records for September have stayed close to the long-run average.

Compare Months

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2days (8 mm) Excellent

1days (9 mm) Excellent

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January best	29°C / 20°C	31°C / 21°C	0days (2 mm) Excellent	10.3h Excellent	65% Muggy	6.2 High	Excellent	View Details
February best	31°C / 20°C	33°C / 22°C	0days (0 mm) Excellent	10.7h Excellent	62% Muggy	7 High	Excellent	View Details
March	33°C / 23°C	36°C / 26°C	0days (1 mm) Excellent	11.1h Excellent	65% Muggy	7.7 Very High	Good	View Details
April	33°C / 25°C	38°C / 30°C	0days (0 mm) Excellent	11.7h Excellent	72% Muggy	7.9 Very High	Fair	View Details
May	33°C / 27°C	39°C / 33°C	4days (40 mm) Good	11.4h Excellent	75% Muggy	7.2 Very High	Poor	View Details
June	30°C / 27°C	35°C / 31°C	26days (380 mm) Wet	8.5h Good	84% Humid	6.7 High	Wet	View Details
July	28°C / 26°C	32°C / 30°C	31days (716 mm) Wet	5h Fair	89% Very Muggy	5.2 High	Wet	View Details
August	28°C / 25°C	32°C / 29°C	30days (519 mm) Wet	7.3h Good	88% Very Muggy	6.7 High	Wet	View Details
September	28°C / 25°C	34°C / 30°C	26days (465 mm) Wet	7.6h Good	87% Very Muggy	6.2 High	Wet	View Details
October	31°C / 25°C	37°C / 30°C	11days (94 mm) Wet	9.4h Good	79% Humid	6.8 High	Poor	View Details
November	32°C / 23°C	35°C / 25°C	2days (8 mm) Excellent	10.1h Excellent	67% Muggy	6.3 High	Good	View Details
December best	30°C / 21°C	33°C / 23°C	1days (9 mm) Excellent	9.8h Good	66% Muggy	5.9 High	Excellent	View Details

What to Wear

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketWaterproof shoesBreathable clothingSunscreen (SPF 30+)Sun hatSunglasses

Frequently Asked Questions

Expand all

Is September a good time to visit Mumbai?

September is typically wet for visiting Mumbai, with average highs of 28°C (83°F) and around 26 rainy days. Mumbai, India in September has hot conditions, with highs reaching 28.4°C (83°F) and afternoons the warmest part of the

Does it rain a lot in Mumbai in September?

Mumbai typically sees around 26 rainy days in September with 465 mm (18.3 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Mumbai in September?

Nights stay pleasantly warm in Mumbai during September, around 25°C (77°F). Light evening wear is sufficient.

What should I pack for Mumbai in September?

With highs of 28°C (83°F) and lows of 25°C (77°F) in September, we recommend: Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). Comfortable walking shoes are essential.

Is September among the best months weather-wise in Mumbai?

September is not the most favourable month weather-wise in Mumbai. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Mumbai in September?

The average UV index in Mumbai during September is 6 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.

How many hours of daylight are there in Mumbai in September?

Mumbai gets approximately 12 hours of daylight per day in September, with around 8 hours of sunshine.

Does it snow in Mumbai in September?

Snow is uncommon in Mumbai during September based on 10-year climate averages.

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