Mumbai
India
Long-term weather forecast
Long-term weather forecast

September weather forecast and Climate
Mumbai, India

The iconic ancient arch monument of the Gateway of Mumbai, India
The iconic ancient arch monument of the Gateway of Mumbai, India
September is characterized by a small rise in temperature to read between 77°F (25°C) and 87.8°F (31°C), making it warmer but still a wet month, from the rains that fall for a monthly average of nineteen days to collect at 12.6" (320mm).
The sunshine hours rise to five per day on average warming the ocean to an average of 84.2°F (29°C). The month experiences a drop in the wind speed same with the humidity that comes down to 75%
  • The average high temperature in September: 30.4°C

The warmest month (with the highest average high temperature) is November (33.5°C).
The month with the lowest average high temperature is August (29.6°C).

  • The average low temperature in September: 24.3°C

The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).

  • The average humidity in September: 83%

Months with the highest relative humidity are July and August (86%).
The month with the lowest relative humidity is February (67%).

  • The average rainfall in September: 312.3mm

The wettest month (with the highest rainfall) is July (799.7mm).
The driest month (with the lowest rainfall) is March (0.2mm).

  • The average rainfall days in September: 14.4 days

The month with the highest number of rainy days is July (23.2 days).
The month with the lowest number of rainy days is March (0 days).

  • The average sea temperature in September: 28°C

Best months for swimming (with the highest average sea temperature) are May, June, July and October (29°C).
Coldest months (with the lowest average sea temperature) are January and February (25°C).

  • The average daylight in September: 12h

Months with the longest days are April, May, June, July and August (Average daylight: 13h).
Months with shortest days are January, November and December (Average daylight: 11h).

  • The average sunshine in September: 5.5h

The month with most sunshine is May (Average sunshine: 9.6h).
Months with least sunshine are July and August (Average sunshine: 2.4).

  • The average UV index in September: 12

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 7).

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