The climate of Madurai is hot and humid, with typicality of the rest of the Deccan plateau. The summers can be uncomfortable especially in the month of May, which is the hottest in the season and the temperature can shoot as high as 380C. It is advisable that you wear cotton and light clothes during these months and have plenty of coconut water to keep your body hydrated.
The winters are only in name for there is hardly any shift to the temperature. December, January and February are the months, which are slightly less hot than the summers.
The city becomes a pleasant host to the Monsoons in the months of September, October, and November. This is the period when Madurai is wet with intermittent showers, however they are never heavy enough to deter one from sightseeing.