Biwako Valley 48-Hour Snow Forecast
Updated 22 July 2026 10:42 BST
2-Day Forecast for Biwako Valley
48-hours from 22 July.
See below for forecast detail
Biwako Valley Snow Forecast updated at 10:42 BST, next update expected 16:00 BST.
Forecast for today in Biwako Valley
Max 25℃ 78°F
Min 20℃ 69°F
Valley temperatures from an overnight low of 20℃ 69°F to daytime highs around 25℃ 78°F
Temperature at BaseTemp at Base
Wed
22
Snow unlikely
Fair.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Forecast for tomorrow in Biwako Valley
Max 23℃ 74°F
Min 20℃ 68°F
Valley temperatures from an overnight low of 20℃ 68°F to daytime highs around 23℃ 74°F
Temperature at BaseTemp at Base
Thu
23
Snow unlikely
Fair early, then clear sky 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? | |||
|---|---|---|---|---|---|---|---|
| Wed | 09:00 | | Fair at altitude. Clear below. | 25℃ 78°F | NW Light | -125% | |
| Wed | 10:00 | | Fair. | 25℃ 77°F | NW Light | -125% | |
| Wed | 11:00 |  | Light drizzle. | 25℃ 78°F | NW Light | -125% | |
| Wed | 12:00 | | Light snow at altitude. Lt rain below. | 25℃ 78°F | NW Light | -125% | |
| Wed | 13:00 | | Fair. | 25℃ 78°F | NW Light | -125% | |
| Wed | 14:00 | | Fair. | 25℃ 78°F | NW Light | -125% | |
| Wed | 15:00 | | Fair. | 25℃ 77°F | NW Light | -125% | |
| Wed | 16:00 | | Fair. | 24℃ 76°F | NW Light | -125% | |
| Wed | 17:00 | | Fair at altitude. Mixed below. | 23℃ 74°F | NW Light | -125% | |
| Wed | 18:00 | | Clear spells. | 22℃ 72°F | NW Light | -125% | |
| Wed | 19:00 | | Fair at altitude. Mixed below. | 22℃ 71°F | NW Light | -125% | |
| Wed | 20:00 | | Fair. | 22℃ 71°F | NW Light | -125% | |
| Wed | 21:00 | | Clear sky at altitude. Fair below. | 21℃ 70°F | NW Light | -125% | |
| Wed | 22:00 | | Clear sky at altitude. Fair below. | 21℃ 69°F | NW Light | -125% | |
| Wed | 23:00 | | Clear sky at altitude. Mixed below. | 20℃ 69°F | NW Light | -125% | |
| Thu | 00:00 | | Clear sky at altitude. Fair below. | 20℃ 69°F | W Light | -125% | |
| Thu | 01:00 | | Clear sky. | 20℃ 68°F | W Light | -125% | |
| Thu | 02:00 | | Clear sky. | 20℃ 69°F | W Light | -125% | |
| Thu | 03:00 | | Clear sky. | 20℃ 69°F | W Light | -125% | |
| Thu | 04:00 | | Clear sky at altitude. Fair below. | 21℃ 69°F | W Light | -125% | |
| Thu | 05:00 | | Fair. | 21℃ 69°F | W Light | -125% | |
| Thu | 06:00 | | Fair. | 21℃ 70°F | W Light | -125% | |
| Thu | 07:00 | | Fair. | 22℃ 71°F | W Light | -125% | |
| Thu | 08:00 | | Fair. | 23℃ 73°F | W Light | -125% | |
| Thu | 09:00 | | Fair. | 23℃ 74°F | W Light | -125% | |
| Thu | 10:00 | | Fair. | 23℃ 74°F | W Light | -125% | |
| Thu | 11:00 | | Fair. | 23℃ 74°F | W Light | -125% | |
| Thu | 12:00 | | Clear spells at altitude. Fair below. | 23℃ 73°F | W Light | -125% | |
| Thu | 13:00 | | Light drizzle. | 23℃ 74°F | W Light | -125% | |
| Thu | 14:00 | | Fair at altitude. Lt drizzle below. | 23℃ 74°F | W Light | -125% | |
| Thu | 15:00 | | Clear spells. | 23℃ 73°F | W Breeze | -125% | |
| Thu | 16:00 | | Clear spells at altitude. Fair below. | 23℃ 73°F | W Light | -125% | |
| Thu | 17:00 | | Light snow at altitude. Lt rain below. | 22℃ 72°F | W Light | -125% | |
| Thu | 18:00 | | Light drizzle. | 22℃ 71°F | W Light | -125% | |
| Thu | 19:00 | | Clear spells at altitude. Fair below. | 21℃ 70°F | W Light | -125% | |
| Thu | 20:00 | | Fair. | 21℃ 70°F | W Light | -125% | |
| Thu | 21:00 | | Fair. | 21℃ 70°F | W Light | -125% | |
| Thu | 22:00 | | Clear sky. | 21℃ 69°F | W Light | -125% | |
| Thu | 23:00 | | Clear sky. | 21℃ 70°F | W Light | -125% | |
| Fri | 00:00 | | Clear sky. | 20℃ 69°F | SW Light | -125% | |
| Fri | 01:00 | | Clear sky. | 20℃ 69°F | SW Light | -125% | |
| Fri | 02:00 | | Clear sky. | 20℃ 68°F | SW Light | -125% | |
| Fri | 03:00 | | Clear sky. | 20℃ 68°F | SW Light | -125% | |
| Fri | 04:00 | | Clear sky at altitude. Fair below. | 20℃ 67°F | SW Light | -125% | |
| Fri | 05:00 | | Fair. | 19℃ 67°F | SW Light | -125% | |
| Fri | 06:00 | | Fair. | 20℃ 69°F | SW Light | -125% | |
| Fri | 07:00 | | Clear sky. | 22℃ 72°F | SW Light | -125% | |
| Fri | 08:00 | | Clear sky. | 23℃ 74°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.