Nagercoil experiences a warm climate year-round, with temperatures rarely dipping below 20°C. The summer months of April and May bring the highest temperatures, often reaching up to 36°C, while the winter months of December and January are slightly cooler, averaging around 28°C. Spring is mild, with temperatures ranging from 22°C to 35°C in March and April. Summer is hot and humid, with temperatures consistently above 30°C from June to September. Autumn brings a slight cooling, with temperatures gradually decreasing towards the end of the year, but still remaining warm overall.