We want to visit Kusatsu and some other onsen in Gunma prefecture in the first week of December. We will be renting a car from Tokyo. But I am quite worried if it will already be snowing on the mountainside during that time, and thus affecting the driving without snow tires. We have visited this region some years ago in mid December and found the driving to be quite stressful without proper tires... So that this time we can request the rental car company for those accordingly.
Appreciate any insight on this.