Expats will discover that the weather in Mumbai is pretty much consistently hot and humid. Temperatures in the city remain relatively stable throughout the year, and the mercury never seems to stray far from 86°F (30°C). Expats who are not used to such heat and humidity should take care to stay hydrated and remain indoors during the hottest hours of the day.
Seasons in Mumbai are largely determined by rainfall, with the wet monsoon season typically lasting from June to September. During this period, it usually rains daily and cloud cover is nearly constant. Winter begins shortly after the monsoon season, from December to February, when the evening temperatures are mild. Summer is from March to June.