Sunday and Monday stay sharply cold with only light nuisance snow early, followed by a better but still modest snowfall window Tuesday afternoon through early Wednesday. After that, confidence drops as a broader Thursday night through weekend precipitation cycle arrives with bigger spread on snow versus rain at different elevations.
WeatherJapan is lined up for a busy January 8-18 stretch with multiple snow-producing waves, highlighted by a major weekend dump and several follow-up refreshers before a warmer, windier finish late week. Central Honshu is the headline with multi-storm totals reaching 50″-80″, while Hokkaido's open resorts keep stacking frequent, generally higher-quality snow that adds up to 20″-65″, with periodic wind impacts on the most exposed terrain.