We were incredibly lucky that we had a chartered car, preventing public transport disruptions from affecting our trip, even with the terrible weather. Although the drive took longer than expected in the icy conditions, it was very comfortable and convenient.
Anonymous User
Family
Lake Shikotsu Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Lake Shikotsu year round climate
Spring (March–May): Average 1.4–11.6°C, with fluctuating temperatures and increasing rainfall. March may still see snowfall, April gradually warms up, and May offers pleasant temperatures. Common activities: Lake views, hiking. Recommended clothing: Warm jacket, sweater, waterproof jacket.
Summer (June–August): Average 15.7–23.1°C, pleasant temperatures with higher rainfall, especially in August. Long sunshine hours are ideal for outdoor activities. Common activities: Boating, camping, mountain climbing, enjoying lakeside scenery. Recommended clothing: Light and breathable clothing, rain gear.
Autumn (September–November): Average 6.0–19.7°C, gradually decreasing temperatures and reduced rainfall, with crisp autumn weather. Maple leaf season offers beautiful scenery. Common activities: Maple leaf viewing, hiking, photography. Recommended clothing: Comfortable warm clothing, light jacket.
Winter (December–February): Average -4.0–-1.7°C, cold temperatures with less snowfall. The lake freezes over, presenting a unique winter landscape. Common activities: Ice activities (depending on ice conditions), enjoying snowy scenery. Recommended clothing: Warm down jacket, thick sweater, hat, gloves, scarf.
Lake Shikotsu climatological average
Annual average temperature: approx. 9.2°C / Annual rainfall: approx. 1208 mm / Summer humidity: 70%–80% / Rainiest month: August
Lake Shikotsu monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-4°C
56
February
-2.8°C
23.5
March
1.4°C
69.5
April
7.4°C
69
May
11.6°C
99
June
15.7°C
124.2
July
21.3°C
145.5
August
23.1°C
200.1
September
19.7°C
180.5
October
12.7°C
132.3
November
6°C
76.6
December
-1.7°C
32.4
Lake Shikotsu weather for the next seven days
2/12
Thursday
Light freezing rain
-1.5°C/-6.1°C
2/13
Friday
Heavy snow
1.3°C/-6.7°C
2/14
Saturday
Light freezing rain
-0.2°C/-6.5°C
2/15
Sunday
Moderate rain
4.3°C/-2.5°C
2/16
Monday
Light freezing rain
0.3°C/-5.1°C
2/17
Tuesday
Sunny
-0.2°C/-7°C
2/18
Wednesday
Partly Cloudy
2.7°C/-5°C
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