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

🇯🇵 Sun Valley (Nagano) Snow Forecast

Issued: 14 Apr 2026Next 6 days: 121cm fresh snowSnow depth: 225cm top / 146cm bottom

6 Day Forecast|16 Day ForecastSign in for free to unlock

Current Conditions - Perfect

Lift	Weather	Temp	Wind	Snow Depth
Top (1600m)		0°C	1 km/h	225cm
Bottom (1420m)		3°C	2 km/h	146cm

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 66cm 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 225cm. Simply world-class conditions!

6-Day Forecast	Tue 14 Apr			Wed 15 Apr			Thu 16 Apr			Fri 17 Apr			Sat 18 Apr			Sun 19 Apr
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	2	1	2	2	3	3	0	0	2	0	2	1	1	3	1	3	0
Snow (cm)	—	—	12	—	—	25	—	—	18	—	—	25	—	—	27	—	—	14
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	-2	0	0	-3	-1	-2	-2	0	0	-3	-1	0	-2	-2	-1	-2
Min Temp (°C)	-5	-3	-6	-3	-4	-4	-6	-5	-3	-4	-6	-4	-4	-6	-5	-5	-5	-5
Wind Chill (°C)	-5	-3	-8	-4	-6	-4	-6	-7	-5	-5	-7	-5	-4	-7	-6	-5	-6	-7
Humidity (%)	47	30	40	44	32	40	47	35	49	36	46	44	37	41	49	43	30	49
Freeze Lvl (m)	222	486	171	252	18	162	1	231	319	169	315	99	372	443	0	38	85	171

16 Day Forecast

Create a free account to unlock 16-day forecasts for every resort.