Weather is probably a major factor when you plan your trip to Kochi, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and April with an average temp of 83°F, while the coldest months are January and December with an average of 81°F. The rainiest months in Kochi are June, July, August, and May, with each month seeing an average of 23 inches of rainfall.