The ideal time to visit the Peruvannamuzhi Dam is during the post-monsoon months, specifically from September to March. During this period, the monsoon rains have replenished the reservoir, ensuring that the dam is at its most picturesque with bountiful water levels that enhance the scenic beauty of the surrounding landscape. The weather, post-monsoon, is also very pleasant, with the lush greenery of the area being a vibrant backdrop for sightseeing, photography, and enjoying the serene environment. Furthermore, the cooler climate during these months makes it comfortable for travelers to engage in outdoor activities like boating and exploring the nearby tourist spots without the extreme heat or humidity that can be experienced in the summer months.
Summers, which span from April to June, can be quite hot and humid, making sightseeing a less than comfortable experience during the daytime. The monsoon season, from July to August, although beautiful, poses challenges with heavy rainfall that could disrupt travel plans and outdoor activities. Nonetheless, if one is inclined to witness the monsoon's beauty, it can still be a memorable time; however, caution is advised due to possible high water levels and strong currents. It's worth noting that Peruvannamuzhi Dam is part of an eco-tourism project, so regardless of the season, the region’s flora and fauna can provide a delightful experience, but for the best balance of weather and accessibility, the post-monsoon period stands out as the optimal time to visit.