Chennai is near thermal equator and thus sees little variation in seasonal temperature. Chennai's closeness to the sea makes it stay hot and humid for most of the year. The average annual rainfall is about 1,300 mm. Chennai gets most of its rainfall from the northeast monsoon winds, starting from late September to mid November. The climate of Chennai is essentially tropical. The weather of Chennai remains reasonable with little variations all year round. Temperatures and dampness remain relatively high all year round. Lightweight clothes and an umbrella are required throughout the year. A few more sheets of clothing may also be helpful during the cooler months, as temperatures may drop a little in the evening. The cool season and the beginning of the summer season is the best time to visit when rainfall is slightly lower that it is between November and March
Chennai is near the equator that makes it see a small variation in the climate conditions. It has extreme temperature when it comes to both the summers as well as the winters. The rainfall is really high which ranges up to 1300mm in a year. It receives rainfall from the northeast monsoon from July to November. The summers are also too hot which comes during the seasons between the months of February to July. These two seasons that is the summer and the rainy are not the right time to visit Chennai, as they might be a disturbance when you travel. So this makes it clear that winter is the best time for one to travel.