Chennai sits on the southeast coast of India, in the state of Tamil Nadu, along the Bay of Bengal. Three rivers pass through Chennai on their way to the sea—the Cooum flows through the city center, the Adyar frames Chennai to the south, and the Kortalaiyar snakes through the northern outskirts.
Chennai has a tropical wet and dry climate, with hot and humid weather. And its position along the coast keeps temperatures fairly steady throughout the year.
Temperatures peak from late May to early June, when the mercury sways between 81 and 100 degrees.
The coolest part of the year is January, when things taper off to a balmy average between 69 and 83 degrees.
In between is Chennai's wet season, which stretches from mid-October to mid-December. November gets hit the heaviest, with an average monthly rainfall of 15 inches.