The original purpose was to take an icebreaker cruise to see the ice breaking, which was the highlight of the trip. Reviews said there would be ice from late January to February, but when we went close to the end of January, we didn't see any because the ice hadn't floated to Japan yet 😂. However! The other activities on the itinerary were great. The hotel was very clean, and the buffet was a pleasant surprise—more thoughtful and delicious than even the high-end hotels in Hong Kong. We also visited a very cold little rural spot with thick, beautiful snow! The scenery was like a painting—absolutely amazing!
Anonymous User
Family
Sounkyo Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Sounkyo year round climate
Spring (March–May): Average -1.2–12.2°C, cold climate gradually warming, rainfall increasing. Common activities: mountain hiking (beware of changing weather), appreciating post-snowmelt scenery. Recommended clothing: warm jacket, sweater, waterproof jacket, waterproof pants.
Summer (June–August): Average 16.8–22.1°C, warm and humid climate, more rainfall, especially in August. Common activities: canyoning, boating, appreciating the magnificent scenery of Daisetsuzan National Park's Sounkyo Gorge. Recommended clothing: light and breathable clothing, rain gear, sunscreen.
Autumn (September–November): Average 9.6–16.9°C, cool and comfortable climate, decreasing rainfall. Common activities: autumn leaves viewing (depending on the foliage change time), hiking. Recommended clothing: light jacket, long-sleeved clothing.
Winter (December–February): Average -8.4–-1.2°C, cold and dry climate, high possibility of snowfall. Common activities: skiing, snowshoeing (pay attention to safety). Recommended clothing: warm clothing, waterproof jacket, snow boots, hat, gloves, scarf.
Sounkyo climatological average
Annual average temperature: approx. 7.2°C / Annual rainfall: approx. 1426 mm / Summer humidity: 70%–80% / Rainiest month: August
Sounkyo monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-8.4°C
58.4
February
-7.1°C
48.7
March
-1.2°C
65.6
April
7°C
70.7
May
12.2°C
88.9
June
16.8°C
175.4
July
21.4°C
144.5
August
22.1°C
250.6
September
16.9°C
179.5
October
9.6°C
144.3
November
3.1°C
117.6
December
-5.7°C
82.3
Sounkyo weather for the next seven days
12/30
Tuesday
Heavy snow
-0.7°C/-5.8°C
12/31
Wednesday
Moderate or heavy snow showers
-6°C/-11.9°C
1/1
Thursday
Heavy snow
-7°C/-12.1°C
1/2
Friday
Moderate or heavy snow showers
-3.1°C/-13.2°C
1/3
Saturday
Light freezing rain
-3.5°C/-12.8°C
1/4
Sunday
Partly Cloudy
-3.7°C/-14°C
1/5
Monday
Light snow
-3.7°C/-10.8°C
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