The best time to visit Lhasa is from May to September, when the weather is warm. The temperatures between day and night can vary by as much as 15 degrees. Ultraviolet radiation during the day is very strong, and proper sun protection is required.
From October, the weather is colder and drier, and the temperature difference between day and night increases. Days are warm while nights are very cold, averaging -4℃. Winter is from November to April, with daytime temperatures above 10℃ dropping to -5℃ to -10℃ at night. Warm clothes are essential.
Altitude sickness is a risk for travellers to Lhasa. Visitors should rest well upon arrival to acclimatize.
Necessary travel items include sunglasses, sunscreen, a hat or visor and warm clothes.
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