Cheruthoni Dam - A Guide to Visiting the Idukki Reservoir

Best Time to Visit

• The ideal time to visit is from September to February. During these post-monsoon and winter months, the weather is pleasant, and the reservoir is typically full, offering the best views. Critically, public access to the dam is generally restricted to specific holiday periods, primarily during the Onam festival season (around August-September) and the Christmas-New Year season (mid-December to mid-January). It is essential to verify the opening dates with local tourism authorities before planning your trip.
• Peak Crowd: During the Onam and Christmas holiday seasons when the dam is open to the public, especially on weekends.
• Moderate Crowd: Weekdays during the designated public opening seasons.
• Low Crowd: The dam is closed to the general public for most of the year, so there are no visitors during these times.