Nethirimangalam's climate is characterized by warm temperatures throughout the year. Winters are mild, with a gentle increase in temperature from January (21-34°C) to March (22-37°C), making it an ideal time for outdoor activities. The summer months of April and May see temperatures peak around 36-37°C, followed by a slight cooling in June and July. Autumn brings similar temperatures as spring, with October and November averaging around 27-28°C.