October and November are the most popular hiking months in Nepal. Popular trekking in Annapurna and Everest region will be full of energy and aura of hikers. Annapurna Circuit Trek is no exception. During these months, pedestrians and travelers from all over the world come to this area.
September-November is the autumn in Nepal. After the monsoon, dust accumulates and the clouds clear. So it has clear blue sky and less dust. All forests and natural vegetation are fresh and vibrant.
The climate is generally warm in the lower reaches of the Annapurna Circuit trek. The average daytime temperature is 15 degrees Celsius. The nights are slightly colder at 7-8 degrees Celsius. The high altitudes are cold. Areas above 4000 meters of this trek have negative degree temperatures. You should be prepared for cold weather in these areas.
You should add extra warm layers of clothing to your Annapurna circuit track packing essentials. The chances of rain or snow are very low during these months. You can enjoy sunny and bright warm days in October and November.
The night scene is no less. You can see the amazing starlight night sky. You will be amazed at the amazing clarity.
More details: https://basecampadventure.com/annapurna-circuit-trek-weather-and-temperature/