The climate of is fundamentally defined by its tropical nature and the rhythmic arrival of two distinct monsoons. Spanning the states of Kerala, Tamil Nadu, Karnataka, Andhra Pradesh, and Telangana, the region remains warm year-round, with temperatures rarely dipping below 18∘C18 raised to the composed with power C 64∘F64 raised to the composed with power F ) in the lowlands. Seasonal Breakdown

The Indian Meteorological Department (IMD) officially recognizes four seasons for the region: en.wikipedia.org

If you want comfortable weather, visit in winter (Dec–Feb) . If you love rain and greenery, go during the Southwest Monsoon (June–Sept) but avoid coastal flooding zones. For beach holidays, stick to the dry months (Jan–March) .