The best and safest time to visit Rohtang Pass in India is during the summer months, specifically from late May to early October. During this period, the pass is typically open to tourists, and the weather is relatively mild with temperatures ranging from 10°C to 20°C (50°F to 68°F). This is when you can enjoy the stunning landscapes, lush meadows, and clear skies without the risk of heavy snowfall or avalanches that can occur in the winter and early spring. However, it’s important to check road conditions and permits, as the weather in the mountains can be unpredictable, and the pass may occasionally close due to landslides or maintenance work.