Sajan undergoes both hot and cold climates annually.
Summers in Sajan last from the month of March to the month of May are extremely hot and stifling. Tourists are suggested to skip this season as travelling in the heat can become quite uncomfortable.
Stretching from June to September, the monsoon season in Sajan is characterized by medium to heavy, abundant rainfalls. The post monsoon period of October and November is a great time to visit Sajan as it gives a splendid view of the several waterfalls and rivers in the region.
Lying between the months of November and February, the winters here are marked by a warm, cool weather, with low levels of humidity.