Yes.
If you dun want see any sunlight with longer route then walk underground path.    Follow the sign to Namba/Nanba Sennichimae Line Station.  Exit 15A.

Then continue walk to ur hotel.    This way u can skip 70% sunlight

Japanese New Year celebrated at June.  Ends of Jan only those Chinatown celebrate CNY only.  CNY in Japanese are not public holiday. 

Japanese one whole year only 2 Peak Season
One at End of April Early of May ...7 Days ''Golden Holiday''
&
Japanese Bon Odori Season.  At End of August Early of Setember... 7 Days ''Golden Holiday''

Avoid Golden Holida at all cost...ALL COST.....you will never get any Shinkansen ticket , Air ticket.  All fully reserve to Japanese.  Foreigners Fxxx off.

You have to Avoid Taiwan & Korea Golden Holiday also  Because they are so closed to Japan.  For them going Japan is like Malaysian going Singapore only.  So Japan that time will be full of People. 

Other than That.....that all.....

Example...Why ends Jan early of Feb , Japan will alot people at Disney?  Those people 70% will be Taiwanese.  Due to CNY golden 1 week Holiday in Taiwan...alot Taiwanese will shoot out to Japan.
So you you guys say what is the Best time to Visit Japan?
Whole July + Early of August ...Summer Season....hottest season.  Guarantee no people everywhere. 
Or November.  Autumm Season. All people will working hard to preperation December X'mas and New Year celebration. November All japanese will work hard no time to play.