The most opportune time to visit Kumily and Thekkady in Kerala is during the winter months, which span from October to February. During this period, the weather is predominantly cool and pleasant, with temperatures ranging from a comfortable 15°C to 30°C. The cooler climate is ideal for wildlife safaris in the renowned Periyar Wildlife Sanctuary, where visitors can observe a diversity of fauna including elephants, tigers, and a plethora of bird species. Moreover, the winter season is perfect for those looking to engage in outdoor activities such as trekking, boat rides on Periyar Lake, and spice plantation tours, all of which are more enjoyable when the humidity is low and the heat is bearable.
Following winter, the months of March to May mark the summer season in Kumily when temperatures can rise significantly, sometimes reaching up to 36°C. Despite the heat, summer can still be a suitable time for those who prefer fewer crowds and are prepared to endure the warmer weather. However, for the most comfortable experience, the monsoon season from June to September should be considered by those who don't mind the rain. Thekkady's landscape transforms into a lush green paradise during monsoons, offering a different kind of beauty, with heavy rains that might restrict some activities but also provide a unique opportunity to enjoy the region's natural splendor in full bloom. Nonetheless, it is advisable to check the accessibility of activities and travel advisories during monsoon before planning your trip.