The optimal period to visit Thengal Bhawan in Jorhat, Assam, is during the post-monsoon and winter months, specifically from October to April. During this timeframe, the weather is pleasantly cool and dry, offering the most comfortable conditions for exploring the historical mansion and its surroundings. With temperatures ranging from a low of 10°C to a high of 28°C, visitors can enjoy the heritage site without the discomfort of the sweltering heat and humidity that characterizes the Assam summers.
Moreover, this season is marked by a number of vibrant festivals and cultural events across Assam, such as the Magh or Bhogali Bihu celebrated in January, which presents a unique opportunity for travelers to experience local traditions and cuisine. The lush green landscapes following the monsoons also provide a picturesque backdrop for photography enthusiasts visiting Thengal Bhawan. It's advisable to avoid the monsoon season, from June to September, as heavy rains can lead to flooding and transport disruptions, making sightseeing challenging.