To know when to visit Sapa and according to one inconvenience which will not change quickly is the weather in Sapa region. If you visit off-season, don’t forget your woollies as winter in Sapa brings fog and drizzle. January and February are the coldest and foggiest month and from March to May the weather in Sapa is excellent.
Considering when to visit Sapa: there are some notes that every visitor should consider before planning a visit to Sapa, because of its mountainous location there will not be easy to drive to Sapa especially in rainy season, when the road surface is slippery and a little bit dangerous. The rainy or wet season lasts for around 3 months, from June to September, and it is not a best time to visit Sapa during that period of time. However from June to September is high domestic season so you may expect to see more Kinh than other ethnic minorities. From September to mid-December, the weather is perfect and considered as when to visit Sapa, photo-taking and camping trips, making it one of two best times to drop by Sapa.
From late December to February, Sapa has a harsh winter with temperature being practically zero and cold winds coming to the region from China. The dry season in Sapa is from January to June, but from January to February, the winter still predominates in the dreaming town. March to May is another best time to visit Sapa, with sunny days, good weather and fresh air. June is an unstable month; sometimes wet season comes earlier in mid-June, so tourists should be mindful of June, too. In general, March to May and September to mid-December is two best times to visit this marvelous town.
March to May: perfect weather – warm and dry and best time for trekking and outdoors activities
June to September: rainy weather, best time to visit Sapa for Vietnamese tourists
Late September to mid December: cool and dry weather, best time for photography and trekking
Mid December to February: harsh winter but few tourists