December 25
Subject to snowfall — some runs may open earlier
May 5
May extend into spring on higher terrain
Asahidake typically opens around December 25 each year. The opening date can vary by a few weeks based on early-season snowfall — some high-altitude runs open earlier.
The season at Asahidake usually runs until May 5. Higher glacier areas (if available) may stay open through spring and early summer.
Peak season runs from Christmas through the February school holidays, when slopes are busiest and prices highest. January mid-week and late March are the best value windows — excellent snow with fewer crowds.