The ideal period for visiting Do Drul Chorten Stupa in Gangtok is during the months of March to June and September to December. During these times, the weather in Gangtok is generally pleasant and clear, offering a great opportunity for sightseeing and exploration. The temperatures in spring (March to early June) are comfortable, ranging between 10°C and 28°C, making it a perfect time to enjoy the blooming flowers and lush greenery that surrounds the stupa. Furthermore, Sikkim celebrates a number of vibrant festivals in spring, such as Saga Dawa and Losar, which can provide a deeper cultural experience to visitors.
Alternatively, Autumn (September to December) is also highly recommended for visiting the Do Drul Chorten Stupa as the skies tend to be clearer, offering spectacular views of the surrounding Himalayan ranges. The Autumn season, with temperatures ranging from 15°C to 20°C, provides an excellent climate for touring without the monsoon rains which can cause roadblocks and travel interruptions in the earlier part of the year. However, it's worth noting that in winter, especially from late December to February, Gangtok can experience cold temperatures and occasional snowfall, which might deter some travelers, though it also offers a uniquely serene winter atmosphere at the stupa.