Thrissur  situated in the central part of the state of Kerala and has a tropical monsoon climate. 

The city experiences three distinct seasons: summer, monsoon, and winter. The summer season in Thrissur starts from March and lasts until May. During this time, the city experiences hot and humid weather, with temperatures. The humidity levels are high, making it feel even hotter. 

The monsoon season in Thrissur starts from June and lasts until September. The city receives heavy rainfall during this time. The rainfall brings down the temperature, making it cooler and more comfortable. However, the city can also experience flooding and landslides during the monsoon season. 

The winter season in Thrissur starts from December and lasts until February. The weather during this time is pleasant. The humidity levels are low, making it a great time to visit the city. 

Thrissur has a tropical monsoon climate, with high humidity levels throughout the year. The best time to visit the city is during the winter season when the weather is pleasant, and the humidity levels are low.