Biwako Valley 48-Hour Snow Forecast
Updated 18 June 2026 09:42 UTC
2-Day Forecast for Biwako Valley
48-hours from 18 June.
See below for forecast detail
Biwako Valley Snow Forecast updated at 09:42 UTC, next update expected imminently.
Forecast for today in Biwako Valley
Max 21℃ 70°F
Min 15℃ 60°F
Valley temperatures from an overnight low of 15℃ 60°F to daytime highs around 21℃ 70°F
Temperature at BaseTemp at Base
Thu
18
Snow unlikely
Fair.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Forecast for tomorrow in Biwako Valley
Max 21℃ 69°F
Min 15℃ 59°F
Valley temperatures from an overnight low of 15℃ 59°F to daytime highs around 21℃ 69°F
Temperature at BaseTemp at Base
Fri
19
Snow unlikely
Fair, cloudy, clear spells later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Thu | 09:00 |  | Clear sky. | 20℃ 68°F | SW Light | -125% | |
| Thu | 10:00 | | Fair at altitude. Clear below. | 21℃ 69°F | SW Light | -125% | |
| Thu | 11:00 | | Clear spells at altitude. Fair below. | 21℃ 69°F | SW Light | -125% | |
| Thu | 12:00 | | Clear spells at altitude. Fair below. | 21℃ 70°F | SW Light | -125% | |
| Thu | 13:00 | | Clear spells at altitude. Fair below. | 20℃ 68°F | SW Light | -125% | |
| Thu | 14:00 | | Clear spells at altitude. Fair below. | 19℃ 66°F | SW Light | -125% | |
| Thu | 15:00 | | Fair. | 19℃ 66°F | SW Light | -125% | |
| Thu | 16:00 | | Fair. | 19℃ 66°F | SW Light | -125% | |
| Thu | 17:00 | | Light snow at altitude. Lt rain below. | 18℃ 65°F | SW Light | -125% | |
| Thu | 18:00 | | Light snow at altitude. Lt rain below. | 17℃ 62°F | SW Light | -125% | |
| Thu | 19:00 | | Clear spells. | 16℃ 61°F | SW Light | -125% | |
| Thu | 20:00 | | Fair. | 15℃ 60°F | SW Light | -125% | |
| Thu | 21:00 | | Fair. | 16℃ 61°F | SW Light | -125% | |
| Thu | 22:00 | | Fair. | 16℃ 60°F | SW Light | -125% | |
| Thu | 23:00 | | Fair. | 16℃ 60°F | SW Light | -125% | |
| Fri | 00:00 | | Fair. | 16℃ 60°F | W Light | -125% | |
| Fri | 01:00 | | Fair. | 15℃ 59°F | W Light | -125% | |
| Fri | 02:00 |  | Fair at altitude. Lt drizzle below. | 16℃ 60°F | W Light | -125% | |
| Fri | 03:00 | | Fair. | 16℃ 60°F | W Light | -125% | |
| Fri | 04:00 | | Fair. | 16℃ 60°F | W Light | -125% | |
| Fri | 05:00 | | Fair. | 15℃ 60°F | W Light | -125% | |
| Fri | 06:00 | | Fair. | 16℃ 61°F | W Light | -125% | |
| Fri | 07:00 | | Clear spells. | 17℃ 62°F | W Light | -125% | |
| Fri | 08:00 | | Fair. | 17℃ 63°F | W Light | -125% | |
| Fri | 09:00 | | Fair. | 18℃ 64°F | W Light | -125% | |
| Fri | 10:00 | | Clear spells at altitude. Fair below. | 19℃ 65°F | W Light | -125% | |
| Fri | 11:00 | | Cloudy. | 19℃ 66°F | W Light | -125% | |
| Fri | 12:00 | | Cloudy. | 20℃ 67°F | W Light | -125% | |
| Fri | 13:00 | | Clear spells. | 20℃ 69°F | W Light | -125% | |
| Fri | 14:00 | | Fair. | 21℃ 69°F | W Light | -125% | |
| Fri | 15:00 | | Fair at altitude. Mixed below. | 20℃ 69°F | W Light | -125% | |
| Fri | 16:00 | | Fair. | 20℃ 68°F | W Light | -125% | |
| Fri | 17:00 | | Clear sky. | 20℃ 67°F | W Light | -125% | |
| Fri | 18:00 | | Clear sky. | 19℃ 65°F | W Light | -125% | |
| Fri | 19:00 | | Clear sky. | 17℃ 63°F | W Light | -125% | |
| Fri | 20:00 | | Clear sky. | 17℃ 62°F | W Light | -125% | |
| Fri | 21:00 | | Fair. | 16℃ 61°F | W Calm | -125% | |
| Fri | 22:00 | | Cloudy at altitude. Mixed below. | 16℃ 61°F | W Light | -125% | |
| Fri | 23:00 | | Cloudy. | 17℃ 62°F | W Light | -125% | |
| Sat | 00:00 | | Cloudy. | 17℃ 63°F | SW Light | -125% | |
| Sat | 01:00 | | Clear spells. | 17℃ 63°F | SW Light | -125% | |
| Sat | 02:00 | | Cloudy. | 17℃ 63°F | SW Light | -125% | |
| Sat | 03:00 | | Clear spells. | 17℃ 63°F | SW Light | -125% | |
| Sat | 04:00 | | Cloudy. | 16℃ 61°F | SW Light | -125% | |
| Sat | 05:00 | | Cloudy at altitude. Mixed below. | 16℃ 60°F | SW Light | -125% | |
| Sat | 06:00 | | Clear spells. | 18℃ 64°F | SW Light | -125% | |
| Sat | 07:00 | | Clear spells. | 19℃ 67°F | SW Light | -125% | |
| Sat | 08:00 | | Cloudy. | 21℃ 70°F | SW Light | -125% | |
Snow Forecast near Biwako Valley
Snow forecasts for nearby ski areas.
Snow Forecasts for other Ski Resorts near Biwako Valley are not available.
Biwako Valley Snow
For current snow depths and skiing conditions, see our Current Snow Report for Biwako Valley.
No significant snowfall is forecast for this period.
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.
Snow Reliability
Biwako Valley typically sees a snow depth of around 1 to 2 meters throughout the season, with reliable snowfall from December to March. For the latest snow conditions, check updates on J2Ski.