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🇯🇵 Sun Valley (Nagano) Snow Forecast

Issued: 25 Jun 2026Next 6 days: 128cm fresh snowSnow depth: 224cm top / 171cm bottom

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Current Conditions - Perfect

Lift	Weather	Temp	Wind	Snow Depth
Top (1600m)		-2°C	1 km/h	224cm
Bottom (1420m)		1°C	2 km/h	171cm

Next 3 Days

Exceptional conditions ahead for Sun Valley (Nagano)! Expect 64cm 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 64cm 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 224cm. Simply world-class conditions!

6-Day Forecast	Thu 25 Jun			Fri 26 Jun			Sat 27 Jun			Sun 28 Jun			Mon 29 Jun			Tue 30 Jun
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)	1	0	2	0	2	1	1	3	1	0	1	1	0	0	3	1	3	1
Snow (cm)	—	—	26	—	—	21	—	—	17	—	—	18	—	—	20	—	—	26
Rain (mm)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Max Temp (°C)	-2	-2	-4	0	-1	-3	0	0	-3	-1	-2	-3	0	0	-4	0	0	-2
Min Temp (°C)	-5	-6	-6	-3	-3	-4	-6	-6	-5	-6	-6	-5	-3	-5	-5	-5	-5	-3
Wind Chill (°C)	-6	-7	-6	-3	-3	-4	-8	-6	-7	-8	-7	-5	-3	-5	-7	-7	-5	-4
Humidity (%)	35	30	48	47	45	37	40	40	34	31	37	42	45	41	36	34	41	40
Freeze Lvl (m)	336	446	329	209	24	242	496	157	163	328	325	139	249	422	246	45	298	354

16 Day Forecast

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