The best time to visit Trayambakeshwar Temple, also known as Tera Manzil Temple, is from early October to mid-April when the weather in Rishikesh is most pleasant. During these months, you can enjoy the spirituality of the temple without the discomfort of extreme temperatures. The monsoon season, typically from late June to September, can be avoided as heavy rains cause the Ganges to swell and often lead to disruptions in travel plans due to landslides and flooding in and around Rishikesh. Winters, especially from November to February, are cool and ideal for temple visits and participating in Ganga Aarti, though mornings and evenings can be quite chilly.
In terms of religious significance, visiting during festivals like Shivratri (usually in February or March) and Basant Panchami (usually in January or February) adds to the experience as the temple is vibrant with festivities and special rituals. However, these periods draw large crowds, so it is advisable for those seeking a quieter experience to plan their visit just before or after these events. If you visit on a regular day, you can enjoy a more tranquil atmosphere and a meaningful interaction with the temple surroundings.