Visiting local bars in Thrissur is more fun in good weather. These rainfall averages and temperatures can help you choose the best time for bar hopping. The hottest months are usually March and February with an average temp of 82°F, while the coldest months are January and December with an average of 80°F. The rainiest months in Thrissur are June, July, August, and May, with each month seeing an average of 21 inches of rainfall.