Daily snow and weather forecast for Tomamu, Hokkaido, refreshed several times a day in season: snowfall, rain and temperatures at the top and base of the mountain for the next eight days.
Forecasts are made for a single point, often in the valley. We adjust them to Tomamu's top (1,172m) and base (587m): temperatures drop with height, so rain lower down can fall as snow higher up. Snow depth allows for temperature, as colder snow is lighter and deeper.
The snow season usually runs from December to April.
