Cochin is a seaside town just 10 degrees north of the equator. As such, it is a moderately hot and humid place year-round. Heavy showers with thunder and lightning are experienced from June through September as a result of the southwest monsoon. The northwest monsoon brings light rainfall from October through December. December to February is comparatively cooler than the rest of the year. The average annual rainfall is about 350cm, most of which is a result of the southwest monsoon. During the summer, which is from March through June, average highs are in the mid-90s. In the winter, average highs are in the upper-70s.

    Monsoon seasons are characterized by reliable, short episodes of rainfall, usually every day. So, if you visit during a monsoon season, make sure you are adequately prepared for damp weather. Also during this time, infrastructure like roads can become unreliable. Indians are reliant on the monsoons, and their agriculture is dependent on the arrival of monsoon season. Thus, the weather phenomenon is heavily ingrained in Indian culture.