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
5/12
Tuesday
Sunny
16.5°C/6.8°C
5/13
Wednesday
Patchy rain nearby
16.7°C/7.5°C
5/14
Thursday
Partly Cloudy
11.9°C/6.8°C
5/15
Friday
Sunny
19.9°C/5.7°C
5/16
Saturday
Sunny
21.8°C/9.3°C
5/17
Sunday
Partly Cloudy
14.5°C/8.1°C
5/18
Monday
Sunny
17.2°C/7.5°C
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