Manas National Park can be accessed around the year unlike certain other National Parks that remain closed in the monsoon season due to heavy rainfall and though it can be visited but the safari option will remain open only if there is not rainfall on the day and the monsoon season in Assam is known for heavy downpours. 

It is recommended that the best time to visit Manas National Park is during the months of October to May and it is recommended not to plan your visit to this Biodiversity hotspot in the months from June to September.