Mumbai Weather in September
September in Mumbai sees daytime temperatures around 30°C (86°F) and lows of 26°C (79°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.
Rainfall in Mumbai in September
Mumbai is in the rainy season in September, with rain on around 12 days and an average of 294 mm (12 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.
Temperature in Mumbai in September
September in Mumbai brings typical temperatures with highs around 30°C (86°F) and lows of 26°C (79°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 26°C (79°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Mumbai in September
You can expect a moderate amount of sunlight, with approximately 165 hours. Even though this month is part of the wet season, you can still see the sun occasionally.
Wind Speed in Mumbai in September
Wind speeds average 1 m/s (2 knots) during September. At this speed, you'll experience mostly light air movement that's just barely noticeable. As an average, some days will be completely calm while others have gentle breezes you can feel on your skin.
Average water temperature in September
The water is 28°C (82°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.September in Mumbai has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit India, check out our Mumbai's climate page.
Mumbai Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Water Temperature
28°C (82°F)
Chance of Rain
41%
Precipitation
294 mm (12 in)
Rainy days
12 days
Humidity
80%
Windspeed
1 m/s (2 knots)
Sunshine
165 hours
Percentage Sunshine
Daily Historical Temperatures
48-year average (1976-2025)
Based on our historical records, temperatures in Mumbai typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in September
Daily Historical Precipitation
48-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Mumbai in September
Browse day-by-day weather records for Mumbai spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mumbai historical weather extremes in September
Based on 21 years of weather observations in Mumbai between 2004 and 2025, these are the recorded extremes.
- Mumbai recorded its highest September temperature of 37°C (99°F) on September 30, 2015.
- Mumbai experienced its chilliest September day on September 22, 2022, reaching only 26°C (79°F).
- Mumbai registered its coldest September night on September 10, 2016, with temperatures dropping to 20°C (68°F).
Best Places in India in September
Find out more about the weather in India and which places have the best travel conditions in this month. See all of India in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Mumbai in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Mumbai in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit India, check out our Mumbai's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Mumbai climate overview or explore weather in India.
