The climate in the town of Tirupur is generally pleasant, and this is quite rare in the interior parts of Tamil Nadu. The climate in Tirupur can be best described as salubrious, and temperatures hardly rise beyond a certain point. The main seasons in Tirupur are the seasons of summer, winter and monsoon, as in the rest of the region.
The summer months in the town of Tirupur are the months of March, April and May. The weather during these three months is very hot and dry. The maximum temperature during the summer months will be around 35 °C (95 °F) and the minimum temperature will be around 29 °C (84 °F).
The monsoon months are the months of June, July and August. These months are mainly characterized by mild showers and a reduced temperature. The post monsoon or winter months are September, October, November, December and January. These months generally have a cool climate and temperatures rarely rise beyond a maximum of around 29 °C (84 °F). The minimum temperature during this season will be around 24 °C (75 °F).
Due to the presence of the mountain pass, major parts of the district benefit from the south-west monsoon in the months from June to August. After a warm, humid September, the regular monsoon starts from October lasting till early November. These monsoons are brought about by the retreating North-eastern monsoon. The average annual rainfall is around 700 mm (28 in) with the North East and the South West monsoons contributing to 47% and 28% respectively to the total rainfall.
The soil is predominantly black, which is suitable for cotton cultivation, but it also has some red loamy soil. Tirupur falls under the Class III/IV seismic zone, having experienced a 6.0 Richter scale earthquake in 1900
