Chennai Climate by Month
Chennai formally known as madras has a tropical wet and dry climate. The hottest part of the year is from May to early June and we would avoid travelling to the city in this period. Chennai gets most of its seasonal rainfall from the north–east monsoon winds, from mid–October to mid–December. Cyclones in the Bay of Bengal sometimes hit the city. The best time of year to visit Chennai is from January until March.
The graphs below provide an overview of the climate in Chennai (Tamil Nadu), India. They present long-term patterns and averages of weather conditions over a 30-year period.