September · India
Best time to visit Mumbai in September Weather, crowds & prices
Weather in Mumbai in September
Average temperature 26°C, 495 mm of rain, about 15 days with 6+ hours of sunshine and 90% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
2.8/10
Ranked #10 of 12 months
- Avg temp
- 26°C
- Rainfall
- 495 mm
- Humidity
- 90%
- Days with 6h+ sun
- 15
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Mumbai scores 2.8/10 for sightseeing and cultural travel - ranked #10 of 12. Expect around 26°C, 495 mm of rain, and roughly 15 days with 6+ hours of sunshine this month.
Seafront promenades, colonial landmarks, and street snacks shine in cooler January-March.
September in Mumbai — off-season conditions
Days in September average 26°C (80°F) and humidity near 90% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Expect monsoon-level rainfall at 495 mm: only about 15 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 2.8/10 on the same scale — 10th of 12 months, versus 9.5/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Expect low-season pricing, and crowds are light for this destination.
If your dates are flexible, January is materially better in Mumbai — 6.7 points higher on the same scale.
Frequently asked
- What is the weather like in Mumbai in September?
- In September, Mumbai averages 26°C, 495 mm of rain, and about 15 days with 6+ hours of sunshine. Its climate-comfort score is 2.8/10.
- Is September a good time to visit Mumbai?
- September earns a 2.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Mumbai in September?
- Expect about 495 mm of rain in September. Average humidity is 90% and there are about 15 days with 6+ hours of sunshine.
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