I am in tokyo right now. The weather is fine(時晴時陰), but little bit cold in the morning and after sunset (around 5:00pm). Actually it is not super cold, but you should take a coat which easy for you to take off. 唔想著羽絨可以著d兩件有得套埋當一件個d jacket. 真係唔想著咁多可以bring 發熱貼, 不過真係要著coat呀! 病左去玩都辛苦啦!