Here are the top 20 ski resorts in Japan ranked by total operating days during the 2024–25 winter season. Tengendai Kogen took the top spot, just one day ahead of Shiga Kogen. By prefecture, Hokkaido leads with seven resorts on the list.
No. 1 Tengendai Kogen (Yamagata) 183 days
No. 2 Shiga Kogen (Nagano) 182 days
No. 3 Kagura (Niigata) 173 days
No. 4 Nekoma Mountain (Fukushima) 159 days
No. 4 Hunter Mountain (Tochigi) 159 days
No. 6 Nozawa Onsen (Nagano) 158 days
No. 6 Tsugaike (Nagano) 158 days
No. 6 Hakuba Happo-One (Nagano) 158 days
No. 6 Hakuba Goryu & Hakuba47 (Nagano) 158 days
No. 6 Tambara (Gunma) 158 days
No. 11 Furano 157 days, No. 11 Niseko Moiwa 157 days, No. 11 Sapporo Kokusai 157 days, No. 11 Niseko Annupuri Kokusai 157 days, No. 11 Sapporo Teine 157 days, No. 11 Geto Kogen 157 days, No. Hakkoda 157days, No. 18 Kiroro 155 days, No. 19 Daisetsuzan Kurodake 154 days, No. 20 Marunuma Kogen 153 days, Yeti 153 days
*Yeti temporarily closed from 10/28 (Mon.) to 11/7 (Thu.), resulting in a total of 153 operating days.
*See also: Top 20 Ski Resorts by Visitors (updated 7/15), Top 20 by Vertical Drop (updated 8/6), and Top 20 by Longest Run (updated 8/17).