Lachen Chu, a picturesque river in the beautiful hamlet of Lachen in North Sikkim, India, is a spectacle of nature that offers serenity and scenic beauty to its visitors. The best time to visit Lachen Chu is typically from October to June. During these months, the weather is most favorable as it remains pleasant and conducive for exploring the outdoors. October and November present the autumn season, with clear skies and crisp air lending spectacular views of the snow-capped peaks and vibrant fall colors. As winter sets in by December, the temperature plummets and snowfall may occur, transforming the landscape into a white wonderland which remains until February.
By March, the snow starts to recede, and a fresh bloom of flora marks the advent of spring, extending up to May. This period is ideal for visitors who enjoy nature and wish to experience the blossoming rhododendrons and other native flowers. April and May see a comfortable climate, perfect for engaging in outdoor activities such as trekking and bird-watching. However, it is important to note that the region is inaccessible during the monsoon months from July to September due to heavy rainfall, landslides, and road blockages. Travelers are advised to plan their visit during the recommended months and carry appropriate clothing to enjoy Lachen Chu at its best, with daytime exploration and cozy, cool evenings.