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🇯🇵 Sun Valley (Nagano) Snow Forecast

Issued: 1 Aug 2026Next 6 days: 118cm fresh snowSnow depth: 345cm top / 141cm bottom

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Current Conditions - Perfect

Lift	Weather	Temp	Wind	Snow Depth
Top (1600m)		0°C	3 km/h	345cm
Bottom (1420m)		3°C	2 km/h	141cm

Next 3 Days

Exceptional conditions ahead for Sun Valley (Nagano)! Expect 55cm of fresh powder over the next three days. Temperatures will remain well below freezing, ensuring perfect snow preservation. Light winds make for ideal skiing conditions.

Days 4–6

The outstanding weather continues with an additional 63cm of snowfall expected. Night-time snow showers will replenish the pistes beautifully, while days remain crisp and clear. Base depth continues to build impressively.

Extended Outlook

The long-range forecast for Sun Valley (Nagano) looks absolutely phenomenal. Consistent snowfall, sub-zero temperatures, and calm winds will persist. Snow depth at the summit is an impressive 345cm. Simply world-class conditions!

6-Day Forecast	Sat 1 Aug			Sun 2 Aug			Mon 3 Aug			Tue 4 Aug			Wed 5 Aug			Thu 6 Aug
6-Day Forecast	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night
Weather
Summary	Clear	Clear	Heavy Snow	Clear	Clear	Heavy Snow	Clear	Clear	Heavy Snow	Clear	Clear	Heavy Snow	Clear	Clear	Heavy Snow	Clear	Clear	Heavy Snow
Wind (km/h)	3	0	3	1	0	3	2	3	2	0	0	1	1	1	0	1	1	1
Snow (cm)	—	—	20	—	—	14	—	—	21	—	—	14	—	—	27	—	—	22
Rain (mm)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Max Temp (°C)	0	-1	-3	0	-1	-2	0	0	-4	0	0	-2	-2	-2	-4	-1	0	-3
Min Temp (°C)	-3	-4	-4	-3	-5	-5	-6	-5	-5	-5	-6	-5	-6	-6	-5	-3	-6	-6
Wind Chill (°C)	-5	-5	-4	-5	-7	-5	-7	-5	-7	-5	-6	-6	-7	-8	-5	-3	-6	-7
Humidity (%)	43	34	46	32	49	31	40	44	31	41	48	48	48	30	39	48	44	30
Freeze Lvl (m)	58	463	290	218	484	133	125	261	279	392	108	298	347	183	231	440	371	185

16 Day Forecast

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