The best time to visit Keylong in Lahaul Valley, located in the northern Indian state of Himachal Pradesh, is during the summer months, from June to September. During this period, the weather is most conducive for travel, with temperatures ranging from a comfortable 15°C to 20°C (59°F to 68°F), allowing tourists to explore the region thoroughly. These months provide clear skies and minimal rainfall, perfect for sightseeing and partaking in outdoor activities. Travelers can enjoy the panoramic views of the Himalayas, and the passes, including the scenic Rohtang Pass and the adventurous Baralacha Pass, are generally open and accessible.
Visiting during the summer also coincides with some local festivals such as the Ladarcha Fair which usually takes place in July or August and is an excellent opportunity to experience the region's vibrant culture and traditions. However, it's important to note that Keylong lies on the route to Leh-Ladakh, and during these months, tourists often pass through the valley, which may result in increased accommodation rates and limited availability. Therefore, it's advised to book your stay well in advance. Also, keep in mind that the monsoon season, although less intense here than in the lower Himalayas, can occasionally cause landslides which may disrupt travel to and from Keylong.