A warm enjoyable climate welcomes tourists in Itanagar throughout the year. Post Monsoon, winter and spring are notified by means of cold climates, particularly during winter months. During winters, the temperature ranges between 220 C to 150 C. Summer is from May to June and the monsoon season is throughout July to September. Monsoon temperature fluctuates between 30°C and 18°C. Summer temperature can ascend up to 40°C for few days. Gentle wind from the Himalayan ranges makes the summer cool.
The finest time to reach Itanagar is between October and March. These months experience a cold gentle wind coming from the Himalayan foothills which balances out the heat and humidity. The avoidable months to take a trip to Itanagar are between July and September. In winters, we might get some blizzard throughout this period. The mountains of Itanagar are the excellent places for vacationing.