The best trekking season to go to Thorong-La Pass and Tilicho Lake is during the Autumn season, which is from September to November. During this time, the weather is clear and dry, making it the ideal season for trekking. The skies are usually clear, providing excellent views of the surrounding peaks and the trail is also less crowded. The temperature is also relatively warm during the day and cool at night, which is ideal for trekking.
Spring is also a good time to trek, which is from March to M
