The best time to visit Kullu is during the months of April to June and September to November. During these periods, the weather is pleasant and favorable for outdoor activities and sightseeing. From April to June, Kullu experiences mild temperatures with clear skies, making it ideal for exploring the lush valleys, rivers, and trekking trails. September to November offers a post-monsoon charm, with pleasant temperatures, colorful landscapes, and festivities like Dussehra. Winter months from December to February are also popular among tourists for snow-related activities, but it can get quite cold.