Home/Countries/Japan/Nagano/Sun Valley (Nagano)

🇯🇵 Sun Valley (Nagano) Snow Forecast

Issued: 23 Feb 2026Next 6 days: 113cm fresh snowSnow depth: 325cm top / 126cm bottom

6 Day Forecast

Current Conditions - Perfect

Lift	Weather	Temp	Wind	Snow Depth
Top (1600m)		-1°C	2 km/h	325cm
Bottom (1420m)		2°C	2 km/h	126cm

Next 3 Days

Exceptional conditions ahead for Sun Valley (Nagano)! Expect 62cm 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 51cm 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 325cm. Simply world-class conditions!

6-Day Forecast	Mon 23 Feb			Tue 24 Feb			Wed 25 Feb			Thu 26 Feb			Fri 27 Feb			Sat 28 Feb
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)	2	2	0	3	3	1	2	1	1	1	3	0	1	1	0	3	3	1
Snow (cm)	—	—	24	—	—	24	—	—	14	—	—	16	—	—	13	—	—	22
Rain (mm)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Max Temp (°C)	-1	0	-4	-2	-2	-4	0	-2	-2	-2	-2	-4	0	-1	-2	-2	-2	-3
Min Temp (°C)	-5	-3	-5	-4	-3	-6	-4	-6	-6	-5	-4	-5	-3	-4	-6	-3	-6	-5
Wind Chill (°C)	-6	-3	-6	-6	-4	-6	-4	-6	-6	-5	-6	-5	-3	-4	-8	-4	-7	-7
Humidity (%)	49	42	36	45	48	48	47	46	48	44	44	34	33	34	35	37	37	45
Freeze Lvl (m)	133	404	495	46	463	257	221	227	156	121	254	48	10	228	81	408	219	80