hi, I think that depends on whether u are westerner or south east asian, for malaysian and singaporean. this weather is really cold, in facts, bring along yr long john and wind breaker. I will be leading tour to beijing 10th april. i would advise my customers to bring thicker jacket in their hand-carry as u reach beijing early in the morning, the weather might make u sick, too cold,around 3-6*c.and also a pair of cloves. to those who bring young kids, pls take xtra precaution, additional jacket is a must.