Bihar is an under-rated state in the eastern part of India right next to Nepal. The River Ganges divides the state and also floods its riparian plains. One of the states with the richest heritage, the state of Bihar has some amazing places to visit including places that are considered very religious for Hindus, Sikhs, Buddhists and Jains. The weather in Bihar is scorching hot in summer which lasts from March till June. The best time to visit Bihar is either after the monsoon or before summer which is during October till March.

Summer in Bihar is invariably from moderate to hot. Beginning in March the summer continues till the first showers in June. May is generally the hottest month with temperatures shooting up to an intolerable 50°C. These months are dusty, scorching hot and very dry. One may even have to bear the dreaded Loo which one finds in the northern parts of India. There are dust storms too during this period and life is generally unbearable.

Like in the rest of India, the summer in Bihar is followed by the monsoons which begin in July as a relief from the excruciating heat of the summer and continues till September. The rains do not spare any part of Bihar and the monsoon is very wet here. The amount of rainfall received by Bihar is very high mainly because it has the Himalayas to its north, which break the South-westerly monsoon winds and brings down torrential rains. The monsoon is often followed by a phenomenon known as the retreating monsoon which experiences cyclonic disturbances during the period between September and November. 

Winter in Bihar is most enjoyable. It begins in November and leaves in the month of March. During the peak of winter the temperature may drop to as low as 0°C in certain parts of the state. Winter begins with daytime temperatures that are very pleasant at 10-20°C while nights experience bitterly cold winds and low temperatures. This is also the period when the local population wears its woollen clothing and street foods are available in plenty. The peak winter period is during December and January when one may see frost in the early hours of the morning.