Ernakulam, experiences a tropical monsoon climate. The city is hot and humid throughout the year, with temperatures ranging from a low of 19.3 degrees Celsius in January to a high of 34.7 degrees Celsius in May. Rainfall is abundant in Ernakulam, with an average annual precipitation of 3,386 millimetres. The city experiences heavy rains from June to September, with the wet season lasting from June to early November. The dry season lasts from November to May. The average relative humidity in Ernakulam is around 80 percent.

It is a major tourist destination. It is home to many ancient temples, churches, and mosques, as well as the famous Kerala backwaters.