Vriddhachalam experiences a hot and dry climate, with temperatures rising steadily from January to May. The summer months of April to June are particularly sweltering, with mercury soaring up to 40°C in June. July and August bring some respite, with temperatures dipping slightly, but still remaining warm. As the monsoon sets in during September, temperatures cool down, ranging between 23-35°C for the rest of the year. The winter months of December to February are mild, with average temperatures hovering around 26°C, but still quite warm compared to other parts of India.