The best time to visit Dehradun is from March to June and September to November. During these months, the weather is pleasant, with temperatures ranging between 17°C and 35°C, making it ideal for sightseeing, trekking, and exploring nearby hill stations like Mussoorie. Spring and early summer bring blooming flowers and clear skies, offering stunning views of the surrounding mountains and lush valleys. This is also a great time to enjoy outdoor activities such as paragliding, river rafting, and nature walks in places like Robber’s Cave and Sahastradhara. Monsoon (July to August) brings moderate to heavy rainfall, which enhances the natural beauty of the region but can also lead to travel disruptions due to landslides or slippery roads. However, the post-monsoon period (September to November) is especially scenic, with clean, refreshed landscapes and a crisp breeze that’s perfect for hiking and photography. Winter (December to February) can be chilly, with temperatures occasionally dropping below 5°C, but it has its charm for those who enjoy cool weather and quiet surroundings. Snowfall is rare in Dehradun itself but accessible with a short trip to nearby areas. Overall, spring and autumn offer the best balance of weather and accessibility, making them the most recommended times to visit. Whether you're seeking adventure, tranquility, or a break from city life, Dehradun offers a serene escape throughout most of the year, but especially during these prime seasons.