Oyasu Onsen snow report
Oyasu Onsen
Oyasu Onsen ski resort in Japan offers 8 courses for skiers, with the "Big Paradise" and "Cruising" runs being the most popular. The resort is also home to a natural hot spring, said to have healing properties. Interestingly, the area was once a thriving silver mine during the Edo period. For beginner skiers, the "Cherry Blossom" run is recommended. For après ski, the "Bar La Montagne" offers a cozy atmosphere and a variety of drinks.
Terrain mix: The Oyasu-Onsen Ski Resort is located in the Zao Mountains in Yamagata Prefecture, Japan. The Zao Mountains are a volcanic mountain range that includes Mount Zao, which is known for its unique "snow monsters" phenomenon in winter. The ski resort offers stunning views of the surrounding mountains, including the iconic Mount Zao, as well as access to a variety of challenging ski slopes and backcountry skiing opportunities. The resort also features natural hot springs (onsen) for guests to relax in after a day on the slopes.
Plan your day down to the hour
Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no. Watch the snow column the morning of a storm to know when to call in sick.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & snow
Daily temperatures, snow, and rain projected over the next two weeks -- start of next storm cycle, end of last one.
Beyond the slopes
Other ski areas, basecamp options, alpine fishing, and scenic stops near Oyasu Onsen -- worth knowing whether you're in for a day, a long weekend, or a season pass.
Mountain & avalanche safety
- Know before you go
- Check today's avalanche bulletin from the regional avalanche center before any off-piste / side-country / backcountry travel. Conditions can shift dramatically between morning and afternoon on storm days.
- Carry the gear, know how to use it
- Beacon, shovel, probe. Practice companion rescue on a calm day, not during a real burial.
- Mind the weather window
- Heavy snow + wind builds wind slabs at ridgelines. The day after a storm is often the riskiest in the backcountry, even if the resort itself is open.
- Respect closed terrain
- Ropes are there for a reason. Even in-bounds, ducking a closure can trigger a slide that catches you and others below.
Track Oyasu Onsen in the Snoflo app
Save this resort as a favorite, set push alerts when snowfall crosses a threshold (e.g. "alert me when Oyasu Onsen reports 6″ new"), and Snoflo's iOS app will push the moment the SNOTEL station crosses.
About Oyasu Onsen
Where does the snow data for Oyasu Onsen come from?
Snowpack, SWE, 24-hour snowfall, and air temperature come from the nearest USDA NRCS SNOTEL station. Forecast comes from the National Weather Service / yr.no feed that Snoflo's iOS app uses.
How often is the snow report updated?
Snowpack and SNOTEL data are updated continuously by NRCS (typically hourly). The 15-day weather forecast is refreshed throughout the day. Snoflo caches and renders the most recent observation -- look for the "as of" timestamp on the snowpack hero.
What's the elevation at Oyasu Onsen?
See the Resort Metrics panel above for base / summit / vertical drop. The summit elevation drives snowpack accumulation -- higher summits hold snow longer through spring.
How is "% of normal" calculated?
Today's snowpack is compared to the average snowpack on this calendar day across every recorded year at the nearest SNOTEL. 100% means right on average; 130% is a big year; 60% is thin.
What ski resorts are near Oyasu Onsen?
See the Other Ski Areas pill grid at the bottom of the page for resorts within driving distance. The sister Other Ski Areas card in the Plan-a-longer-trip grid above shows the closest few.
Can I get alerts when fresh snow hits?
Yes -- snow alerts are managed in the Snoflo iOS app. Favorite this resort, set a snowfall threshold (e.g. "alert me when 6+ inches"), and you'll get a push the moment the SNOTEL crosses.
Other resorts near here
Snoflo-tracked ski areas within driving distance of Oyasu Onsen.