For a safe and convenient two-day trip to the Hokkaido suburbs in winter, KKDay is the perfect solution! In July 2025, I took a day trip to Furano's flower fields and cantaloupe with Sister Tian's tour. Then, in March 2026, I planned to go skiing in Teine and wanted to take an icebreaker cruise. Since Mombetsu is quite far and I didn't want to drive in winter, I booked another two-day trip with KKDay, and it was Sister Tian again! Just as fun!
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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
5/17
Sunday
Patchy rain nearby
18.6°C/10.1°C
5/18
Monday
Partly Cloudy
19.8°C/9.4°C
5/19
Tuesday
Patchy rain nearby
13.4°C/8.3°C
5/20
Wednesday
Sunny
20.1°C/5.7°C
5/21
Thursday
Sunny
21.5°C/7.2°C
5/22
Friday
Sunny
21.4°C/8.7°C
5/23
Saturday
Sunny
22.6°C/7.8°C
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