Sasaram experiences a warm and humid climate, with temperatures gradually increasing from March to May, reaching their peak in June. Summer months are hot, with temperatures ranging from 28-33°C during July and August. September marks the beginning of a slight cooling trend, but temperatures remain relatively high until November. As winter sets in, temperatures drop significantly, with average highs ranging from 14-24°C from December to February. The coldest month is December, with overnight lows often dipping below 9°C.