Mumbai weather in September
In September, Mumbai has an average high of 29 °C85 °F and an average low of 24 °C76 °F, with about 376 mm15 in of precipitation. It is the 7th warmest month of the year and ranks 4th for precipitation.
How September compares with other months
Compared with August, September is about the same temperature and drier by 230 mm9.0 in. Compared with October, September is about the same temperature and wetter by 272 mm11 in. Daylight lasts about 12.2 hours around the middle of the month. Average relative humidity is 89% and the average cloud amount 71%.
Is September a good time to visit Mumbai?
September is not among the most comfortable months by our comfort score: it is hot (average high 29 °C85 °F), it is fairly wet (376 mm15 in) and it is humid (89%). The most comfortable months in Mumbai are November–January.
What to wear in September
For Mumbai in September, pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
September in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Mumbai | 2985 | 2476 | 37615 |
| Bhayandar | 3085 | 2475 | 38615 |
| Panvel | 2985 | 2475 | 37615 |
| Bhiwandi | 3085 | 2475 | 38615 |
| Kalyan | 2985 | 2476 | 37615 |
| Virar | 2883 | 2781 | 27911 |
| Pune | 2781 | 2169 | 27511 |
| Nashik | 2781 | 2069 | 28311 |
| Vapi | 3085 | 2475 | 32213 |
Nearby places that are more than 1 °C1.8 °F cooler: Pune and Nashik.
Other months in Mumbai
- January32 °C89 °F / 16 °C61 °F
- February34 °C94 °F / 18 °C65 °F
- March37 °C99 °F / 21 °C70 °F
- April39 °C102 °F / 24 °C75 °F
- May38 °C100 °F / 26 °C79 °F
- June32 °C90 °F / 26 °C80 °F
- July29 °C84 °F / 25 °C78 °F
- August29 °C83 °F / 25 °C77 °F
- September29 °C85 °F / 24 °C76 °F
- October31 °C89 °F / 22 °C72 °F
- November31 °C88 °F / 19 °C67 °F
- December31 °C88 °F / 17 °C62 °F
Frequently asked questions
How warm is Mumbai in September?
In September the average high in Mumbai is 29 °C (85 °F) and the average low is 24 °C (76 °F).
Does it rain a lot in Mumbai in September?
On average about 376 mm (14.8 in) of precipitation falls in September; it ranks 4th of the 12 months.
Is September the warmest month in Mumbai?
No. The warmest month in Mumbai is April, with an average high of 39 °C (102 °F). The coldest month is January, with an average low of 16 °C (61 °F).
How long is the day in Mumbai in September?
In the middle of September the day in Mumbai lasts about 12.2 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Mumbai in September?
The average relative humidity in September is about 89%. Combined with warm days, it can feel muggy.
How cloudy is Mumbai in September?
On average about 71% of the sky is covered by cloud in September. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 97 m, while Mumbai lies at about 8 m. Temperatures on this page were therefore adjusted by +0.6 °C1 °F using the standard lapse rate of 6.5 °C per 1,000 m.