Kollam is a port city in Kerala with the Laccadive Sea to its west. The ground elevation is 3m. The Ashtamudi Lake occupies the heart of the city. River Kallada empties into this lake. Ithikkara River is also a major one in this city.
The climate of Kollam is not very extreme. The summers and winters do not show much variation in temperatures. The precipitation during monsoon season is very high.