Happo One Snow Forecast
The build-up to deep winter is under way at Happo One. A quiet 3 days ahead, with no new snow showing. Mild days for now, but early-season cold fronts can change things quickly. The deep stuff is on its way.
Snow Trend
24 Hour Forecast
10 day forecast
A typical season at Happo One
Happo One is outside its usual snow season right now.
A typical season here runs November to April, peaking in January, with around 11m of snow in total.
- Average season
- ~11m of snow
- Snowiest month
- January (280–405cm)
- Usual season
- November to April, peaking in January
- Base to summit
- 760m – 1831m (1071m vertical)
That makes Happo One the 5th snowiest of 39 Nagano resorts we have reviewed.
Month by month
Estimated cumulative fresh snowfall at major on-mountain ski areas; actual totals vary substantially by resort, elevation, measurement location, and season.
Forecast tips for Happo One
Start with the upper-mountain wind and cloud line. Here, a cold inland trough is the pattern to watch, so the useful question is how cold and calm the next window stays. With a 760 to 1831 metre elevation band and 1071 metres of vertical, the trees and upper storm laps hold soft snow well after the open faces are worked. A seasonal baseline around 11 metres means moderate-looking totals can still refresh the main lines quickly. The swing variable is whether the upper lift can run with enough visibility to make the top worth using. With patrol boundaries in play, focus on how the inbounds snow will hold through the first half of the day. Chase it when 10 to 20 cm lands overnight with light to moderate wind; if gusts climb, make it a sheltered-tree day.
Nearby forecasts
The closest resort we've reviewed is Hakuba 47, 2km SW, topping out at 1,614m. When a storm misses Happo One, check these first.