Thrissur, known for its vibrant cultural legacy in Kerala, India, witnesses a tropical monsoon climate. The best time to visit Appan Thampuran Smarakam in Thrissur is during the winter months, from December to February. During this period, the weather is relatively cool and pleasant, with temperatures averaging between 22°C to 30°C (72°F to 86°F). This comfortable climate makes it ideal for tourists to explore the historic Smarakam and its surroundings without the discomfort of extreme heat or heavy rainfall.
Visitors should note that the summer months of March to May can be quite hot with temperatures soaring above 35°C (95°F), which may not be conducive for those who are not accustomed to tropical heat. The monsoon season, from June to September, brings heavy rains, which could disrupt travel plans and outdoor exploration. If you are interested in experiencing the colorful festivities of Kerala, you might consider visiting during the annual Thrissur Pooram, usually held in April or May, although it would be considerably crowded and hot. Nonetheless, for a comfortable museum visit, sticking to the winter season is advisable for the best overall experience.