Asia Winter Weather Patterns     
Note that the actual weather can be quite different from the patterns on this map.  Weather is more variable in mountainous terrains.  Monsoon winds are variable, and do not always follow the pattern on this map.  This map describes the pattern over the entire dry monsoon season.

Temperature varies with altitude.  Some peaks in the "Cool and Dry" areas can be just as cold as the "Cold and Dry" areas.  Japan's weather is highly variable, depending on the presence or absence of a passing of mid-latitude weather systems.

See real-time Satellite Photo - Weather.com (external link)
 

[See Summer Weather Pattern]