Learn more about variety of Temperatures of North India, South India and west India.

The Guide to Indian Tourism makes you understand the Climate and Temperature of Northeast India –

Temperatures vary by altitude with the warmest places being in the Brahmaputra and Barak River plains and the coldest at the highest altitudes. 

Climate and Temperature of East and Northeast India -The Brahmaputra and Barak valley river plains, mean winter temperatures vary between 16 to 17 °C (61 to 63 °F) while mean summer temperatures are around 28 °C (82 °F). The highest summer temperatures occur in the West Tripura plain with Agartala, the capital of Tripura having mean maximum summer temperatures ranging between 33 to 35 °C (91 to 95 °F) in April. The highest temperatures in summer occur before the arrival of monsoons and thus eastern areas have the highest temperatures in June and July where the monsoon arrives later than western areas.

In the Cachar Plain, located south of the Brahmaputra plain, temperatures are higher than the Brahmaputra plain although the temperature range is smaller owing to higher cloud cover and the monsoons that moderate night temperatures year round.

Diversities in Temperature  –

In the mountainous areas of Arunachal Pradesh, the Himalayan ranges in the northern border experience the lowest temperatures . This is also with heavy snow during winter and temperatures drop below freezing. Areas with altitudes exceeding 2,000 meters (6,562 ft) receive snowfall during winters and have cool summers. Below 2,000 meters (6,562 ft) above sea level.

Winter temperatures reach up to 15 °C (59 °F) during the day with nights dropping to zero while summers are cool, with a mean maximum of 25 °C (77 °F) and a mean minimum of 15 °C (59 °F). In the hilly areas of Meghalaya, Nagaland, Manipur and Mizoram, winters are cold while summers are cool.