Nandi Hills, located in the Chikkaballapur district of Karnataka, India, is a beautiful and popular tourist destination, known for its serene landscapes, historic forts, and pleasant climate. Determining the best time to visit largely depends on the kind of experience you’re seeking.

1. General Weather: Nandi Hills enjoys a mild and pleasing climate throughout the year. The average temperature typically ranges from 20°C to 28°C, making it comfortable for sightseeing, trekking, and other outdoor activities.
2. Peak Season (October – February): The period from October to February is often considered the best time to visit Nandi Hills. During these months, the weather is pleasant and cooler, especially in the early morning and late evening. This time is perfect for trekking, cycling, and paragliding, among other activities.
3. Monsoon Season (June – September): If you enjoy the monsoon and lush green landscapes, visiting Nandi Hills during the monsoon months could be an option. However, it’s important to note that heavy rains can sometimes disrupt outdoor activities and sightseeing.
4. Summer (March – May): Summers in Nandi Hills are relatively mild compared to the plains, making it a good summer retreat. However, mid-day can still be quite warm, so early morning or late evening visits are preferable during these months.
5. Best Time of Day: An ideal time to start your trip is early morning, as Nandi Hills is renowned for its breathtaking sunrise views. Reaching the top just as the sun begins to rise can offer one of the most enchanting sights. The hill station is often enveloped in a blanket of mist in the morning, which adds to its beauty.

Overall, while Nandi Hills can be visited throughout the year, the period from October to February offers the most comfortable climate for various activities and sightseeing. No matter when you choose to visit, the panoramic views, historic attractions, and natural beauty of Nandi Hills promise a memorable experience.