The best time to visit Lachen is in between the months of November and June for the weather will be pleasant during the time.
The weather during summer is moderate and quite pleasant in Lachen. An annual yak race called Thangu takes place at Lachen every summer and attracts many people towards it.
During winter, Lachen will be quite chilly. Lachen's famous attraction, the Gurdongmar lake will in fact freeze completely during the winter months.