📷 Happo-One
Asia
Happo-One
Projected to open December 1, 2026
Best months to book: January, March, February · last season + 30-yr record
Scroll for happiness
Projected to open Dec 1
Weather data is still collected for informational purposes.
Last Snowfall
Oct 28
2d agoPast 24 Hours
0cm
Past 48 Hours
0cm
Past 10 Days
13cm
7-Day Forecast
0cm
Snow Depth
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Happo-One is projected to open December 1, 2026. Here is when it is usually best to book.
Best months to book
- #1January204cm avg
- #2March113cm avg · last season 28.5
- #3February145cm avg
Best weeks to book
- #1 20 Mar – 25 Mar · last season 33.8
- #2 27 Mar – 2 Apr · last season 22.7
- #3 3 Apr – 9 Apr · last season 26.3
Ranked on 25% last season's SnowSure score (2025-26) · 75% 30-year snowfall and base-depth record. The live score returns when the lifts turn.
Current Conditions
Reported Fri, Oct 30, 10:04 PM UTC
Terrain
Projected to open Dec 1
Projected to open December 1, 2026
16 runs · 21 lifts — live counts and the SnowSure™ Score return when the lifts turn.
Snow Summary
Updated Oct 30 at 10:04 PM
Days 8–14 and every model are in SnowSure Pro.Unlock with Pro
No measurement at mid height (1,316m) reached us: past snow shown is the model's estimate at the summit.
Maps
All maps for Happo-One →
Webcams & Proof of Powder
All webcams & Proof of Powder →
About Happo-One
Happo-One is a prominent ski resort located in Hakuba Valley, Nagano Prefecture, Japan, renowned for its expansive slopes and panoramic views of the Northern Japanese Alps. The resort features a wide variety of terrain suitable for all levels, from gentle beginner runs to challenging expert courses, and is known for its reliable powder snow and long ski season. Key amenities include modern lift systems, ski and snowboard schools, rental services, and a vibrant base area with dining and accommodation options. Happo-One stands out for its role as a host venue during the 1998 Winter Olympics and its access to both on-piste and off-piste experiences.
Read the full resort guide →Frequently asked questions about Happo-One
- Where is Happo-One?
- Happo-One is a ski resort in Japan.
- How high is Happo-One?
- Happo-One runs from a base elevation of 800 m (2,625 ft) to a summit of 1,831 m (6,007 ft), giving a vertical drop of 1,031 m (3,383 ft).
- How big is Happo-One?
- Happo-One has 544 acres (220 hectares) of skiable terrain, 16 marked runs and 21 lifts.
- Which ski pass covers Happo-One?
- Happo-One is on the Epic Pass. Access terms such as blackout dates and day limits vary by pass tier, so check the pass operator for the current season.
- When is ski season at Happo-One?
- Happo-One typically operates from December to April. Exact opening and closing dates shift each year with snowfall — check the resort's current season dates before booking.
- How much snow does Happo-One get in a typical season?
- Happo-One averages 460 inches / 1168 cm of snowfall in a typical season. Any individual season can run well above or below that.
- How will El Niño affect Happo-One in winter 2026-27?
- El Niño Signal Rank: #279 of 488 SnowSure resorts · Tier D · strong-event signal -5% vs its own 30-yr average. In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Happo-One (Hakuba) averaged -5% versus its own 30-year snowfall baseline. Not a warning — a scheduling note. El Niño winters here tend to hit the season's edges hardest — Japan's big snow window runs mid-December to mid-February, and the January–February core signal is closer to neutral. Aim the mid-winter core (January to mid-February) for winter 2026-27. Analog winters: '97-98 -24%, '15-16 -33%, '23-24 +42%.
