Kagoshima is considered the somewhat tropical area of Japan next to Okinawa, but despite being on the southern tip of Kyushu, it does go to low temperatures and it does snow. It does not snow often, nor does it snow hard but it snows.
I came in April 2013 and have only seen snow in Kagoshima city on January 24, 2016 (just one day) and more recently on February 10th, 2017 (half a day). It’s even surprising to Kagoshima locals when snow falls so when you come, don’t expect to see snow here every year, but when it does falls, please enjoy!
The last picture was the light snow fall of February 2017.