Tsubetsu 7-Day Snow Forecast

Tsubetsu Long-Range Snow Forecast Updated today

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Updated 20 August 2026 04:43 BST

Long-Range Snow Forecast for Tsubetsu

Long-range (14 to 45 days) from 20 August.

For Forecast detail, see below.

Tsubetsu Snow Forecast Highlights

When will there be fresh snow in Tsubetsu?

Tsubetsu Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (718m)
Next Snow?
There is no snow currently in the forecast for Tsubetsu.

Long-range Snow Outlook for Tsubetsu

Snowfall

Snow Line

Max 27℃ 81°F
Min 14℃ 58°F

Snow unlikely

Tsubetsu Long-Range (2 weeks+) Snow Forecast Outlook

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

16 Day Weather and Snow Forecast for Tsubetsu from OpenMeteo(JMA)
	Snow and Weather	Temp Town
Thu 20	Fair.	Max 27℃ 81°F Min 17℃ 63°F
Fri 21	Clear sky.	Max 23℃ 73°F Min 14℃ 58°F
Sat 22	Fair.	Max 25℃ 77°F Min 14℃ 58°F
Sun 23	Fair.	Max 24℃ 76°F Min 16℃ 61°F
Mon 24	Cloudy.	Max 23℃ 73°F Min 15℃ 60°F
Tue 25	Light drizzle.	Max 26℃ 79°F Min 18℃ 65°F
Wed 26	Clear spells.	Max 25℃ 77°F Min 15℃ 59°F

No significant snowfall is forecast for this period.

This Snow Forecast for Tsubetsu, Japan gives the predicted Snowfall and Freezing Levels for the next week.

The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Tsubetsu, on any given piste or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.

Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.

Tsubetsu Snow Forecast updated at 04:43 BST, next update expected imminently.

Ensemble forecast for Tsubetsu, Japan at 490m

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

Snow Reliability

Tsubetsu enjoys reliable snow conditions, with an average snow depth of 150 cm during peak season. Regular snowfall ensures excellent skiing throughout the winter; check J2Ski for the latest snow updates and conditions.

Off-Piste Safety in Tsubetsu

Before skiing or snowboarding off-piste in Tsubetsu, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.