Ponnagyun's climate is characterized by a distinct seasonal pattern. The dry and hot season typically begins in March, with temperatures rising to an average of 29°C and highs often reaching above 39°C. This period lasts until May, when the heat remains consistent. A relatively cooler phase then sets in from June to August, with temperatures ranging between 24-35°C. As the monsoon season ends, temperatures rise again from September to November, before gradually decreasing towards the end of the year.