Hot spring resorts are very popular during this time, and if you decide to go skiing or snowboarding you'll soon realize that nothing goes better with a day on the mountain then a post-ski soak in an onsen. Tokyo, southern Japan and Kyushu don't' usually see much snow, but if you're traveling anywhere else, it's a good idea pack some warm clothing. Spring Cherry blossoms. In March and April. Spring can be a great time to be in Japan, but be aware that during the peak season, certain famous viewing areas can be packed.
Evenings can be cool but when the rain stops it gets hot and extremely humid, so pack accordingly.
From the end of August to the September is typhoon season. Although most storms run their course before they hit the mainland, you can count on one or two a year, which can wreak havoc on travel plans. Autumn Fall in Japan lasts until November, and it is arguably the best time to travel. Although many people see Japan as an industrial nation, it is still a farming country at heart, and this is evident by the multitude of festivals that coincide with the autumn harvest. Days are cool and clear, and the radiant fall colors can be seen everywhere.