Nestled in the Garhwal region of Uttarakhand, Nelong Valley is a picturesque offering for adventurers and nature enthusiasts. Due to its high altitude and closeness to the Tibetan border, the best time to plan an expedition to Nelong Valley is during the summer months, which run from May to June, and the post-monsoon month of September to mid-November. During these periods, the weather in the Himalayas is relatively stable and conducive for trekking and wildlife spotting, with clear skies that offer magnificent views of the surrounding peaks and landscapes. It's imperative to avoid the monsoon season, which usually runs from July to August, due to increased risks of landslides and road blockages.
Additionally, as Nelong Valley falls within the Gangotri National Park, the region is subject to environmental regulations and may be closed to visitors during certain times of the year, especially in winter when heavy snowfall occurs. Thus, it is crucial to check the park's accessibility with the local forest department or a reliable tour operator before planning your trip. The valley's unique ecosystem and its remarkable biodiversity are best enjoyed when the valley is open for tourism, with cool and temperate weather making the expedition both enjoyable and less strenuous for visitors. Remember to carry layers of warm clothing during these suggested months as the weather can turn cold, especially during the evenings and nights.