Biwako Valley Snow Report and Forecast
Snow Forecast for Biwako Valley
When will there be fresh snow?
This is the Snow Forecast for Biwako Valley, Japan for 16 days from 4 March.
Updated 04 March 2025 04:32 UTC.
| Next Snow Expected | 5 March |
|---|---|
| Next Snow Amount | 3cm 1in |
| Next 48 Hours | 48cm 19in |
| Next 7 Days | 49cm 19in |
| Free Snow Reports by e-Mail | Sign Up for Powder Alerts |
For Forecast detail, see below.
For current snow depths and skiing conditions, see our Current Snow Report for Biwako Valley.
Forecast for today in Biwako Valley
Max 7℃ 44°F
Min 0℃ 31°F
Valley temperatures from an overnight low of 0℃ 31°F to daytime highs around 7℃ 44°F
Temperature at BaseTemp at Base
Tue
04
Snow unlikely
Clear spells first, cloudy then light drizzle, rain showers later.
Powder Alert!
Updated 04 March 2025 06:42 UTC
Powder Possible :- 48cm 19in of Fresh Snow is forecast for Biwako Valley over the next 2 days.
To get Powder Alerts and Snow Storm Early Warnings by e-mail, Subscribe to our Snow Mail below .
Biwako Valley Snow Report
| Upper Snow Depths |
| - |
| Lower Snow Depths |
| - |
| Snow Conditions |
| - |
Biwako Valley 7-Day Snow Forecast Overview
Get this snow forecast by e-mail Join J2Ski's Snow Mail Here
NEW FOR 24/25 - Improved Forecasts for Biwako Valley - high-resolution weather models, updated more often - Subscribe
| Tue 04 | Wed 05 | Thu 06 | Fri 07 | Sat 08 | Sun 09 | Mon 10 | |
|---|---|---|---|---|---|---|---|
| Wind | NW F2 | NW F2 | SE F2 | ||||
| 1,174m 3,852ft | 7℃ 44°F
| 7℃ 45°F
 +3cm +1in
| 0℃ 32°F
 +45cm +18in
| -5℃ 23°F
 +1cm +1in
| 0℃ 31°F
| 1℃ 33°F
 | 6℃ 43°F
|
| NW F2 | NW F2 | ||||||
| 1,057m 3,468ft | 7℃ 44°F
| 7℃ 45°F
+3cm +1in
| 0℃ 32°F
+45cm +18in
| -4℃ 25°F
+1cm
| -1℃ 31°F
| 1℃ 34°F
 | 7℃ 44°F
|
| NW F2 | NW F2 | ||||||
| 940m 3,084ft | 7℃ 44°F
| 7℃ 45°F
+3cm +1in
| 0℃ 32°F
+45cm +18in
| -3℃ 26°F
+1cm
| 0℃ 32°F
| 2℃ 35°F
| 7℃ 45°F
|
| Snow Line | 940m 3,084ft | 940m 3,084ft | 940m 3,084ft | 940m 3,084ft | |||
| Max Town | 7℃ 44°F | 7℃ 45°F | 0℃ 32°F | -3℃ 26°F | 0℃ 32°F | 2℃ 35°F | 7℃ 45°F |
| Min Town | 0℃ 31°F | 0℃ 32°F | -5℃ 23°F | -7℃ 20°F | -5℃ 23°F | -3℃ 27°F | 0℃ 32°F |
This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.
Biwako Valley Medium-Range (7-Day) Snow Forecast Detail
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.
Max 7℃ 44°F
Min 0℃ 31°F
Valley temperatures from an overnight low of 0℃ 31°F to daytime highs around 7℃ 44°F
Temperature at BaseTemp at Base
Tue
04
Snow unlikely
Clear spells first, cloudy then light drizzle, rain showers later.
Max 7℃ 45°F
Min 0℃ 32°F
Valley temperatures from an overnight low of 0℃ 32°F to daytime highs around 7℃ 45°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Wed
05
3cm 1in New Snow
Light drizzle first, rain showers then light rain, light snow later.
Snow falling to resort level.
Max 0℃ 32°F
Min -5℃ 23°F
Below freezing at all levels, with valley temperatures as low as -5℃ 23°F and not getting above 0℃ 32°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Thu
06
45cm 18in New Snow
Heavy snow early, then heavy snow showers later.
Snow falling to resort level.
Max -3℃ 26°F
Min -7℃ 20°F
Below freezing at all levels, with valley temperatures as low as -7℃ 20°F and not getting above -3℃ 26°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Fri
07
1cm up to 1in New Snow
Light snow early, then cloudy later.
Snow falling to resort level.
Max 0℃ 32°F
Min -5℃ 23°F
Valley temperatures from an overnight low of -5℃ 23°F to daytime highs around 0℃ 32°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Sat
08
Snow unlikely
Cloudy, light snow, clear spells later.
Max 2℃ 35°F
Min -3℃ 27°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -3℃ 27°F and rising to 2℃ 35°F
Temperature at BaseTemp at Base
Sun
09
Snow unlikely
Fair early, then clear sky later.
Max 7℃ 45°F
Min 0℃ 32°F
Valley temperatures from an overnight low of 0℃ 32°F to daytime highs around 7℃ 45°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Mon
10
Snow unlikely
Clear sky, fair, cloudy later.
This Snow Forecast for Biwako Valley, 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 Biwako Valley, 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.
Biwako Valley Snow Forecast updated at 04:32 UTC, next update expected 10:00 UTC.
Snow Forecast near Biwako Valley
| Snow Report and Forecast | 48 Hr | Tue | Wed | Thu | Fri | Sat | Sun | Mon | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| Myoko Suginohara | 22cm 9in | 25cm 10in | |||||||
| Myoko Pine Valley | 22cm 9in | 24cm 9in | |||||||
| Tsugaike Kogen | 18cm 7in | 18cm 7in | |||||||
| Myoko Ikenotaira | 15cm 6in | 17cm 7in | |||||||
| Hakuba 47 | 15cm 6in | 15cm 6in | |||||||
| Happo One | 15cm 6in | 15cm 6in | |||||||
| Togari Onsen | 10cm 4in | 10cm 4in |
Understanding and predicting Snow Conditions in Biwako Valley
Here are our tips for making the most of a trip to Biwako Valley, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Biwako Valley, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.
Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:
Pistes (Groomers) or Off-Piste
These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.
- Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
- Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.
WARNING - skiing off-piste (out-of-bounds) at Biwako Valley is uncontrolled and un-marked slopes are not made safe (from avalanche risk) or patrolled. Always check local advice, know the Avalanche Risk Level, ski with safety kit (and know how to use it), and never ski alone.
Analyzing Weather and Snowfall Forecasts
Whilst no forecast can tell you exactly how snow conditions in Biwako Valley will develop, checking the forecast regularly should give you an idea of what to expect.
New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.
Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.
Predicting Future Snow Quality
Regularly check our snow and weather forecasts for Biwako Valley for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.
Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.