The weather was great today, and we could see Mount Yotei everywhere :) The itinerary timing was perfect. I recommend it to travelers who don't want to drive or do much thinking. Thanks to our Taiwanese guide, Andy, for speaking Mandarin, English, and Japanese. He also recommended which souvenirs to buy and which not to buy.
Anonymous User
Solo traveler
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 34–52°F, 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 60–73°F, 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 42–67°F, 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–-35.1°F, 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. 48.6°F / Annual rainfall: approx. 1208 mm / Summer humidity: 70%–80% / Rainiest month: August
Lake Shikotsu monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
24.8°F
56
February
27°F
23.5
March
34.5°F
69.5
April
45.3°F
69
May
52.9°F
99
June
60.3°F
124.2
July
70.3°F
145.5
August
73.6°F
200.1
September
67.5°F
180.5
October
54.9°F
132.3
November
42.8°F
76.6
December
28.9°F
32.4
Lake Shikotsu weather for the next seven days
3/30
Monday
Partly Cloudy
45.5°F/33.8°F
3/31
Tuesday
Patchy rain nearby
49.3°F/38.8°F
4/1
Wednesday
Sunny
50.8°F/35.3°F
4/2
Thursday
Sunny
50.9°F/35°F
4/3
Friday
Sunny
49.8°F/32.9°F
4/4
Saturday
Overcast
46.4°F/39.6°F
4/5
Sunday
Patchy rain nearby
50.4°F/42.3°F
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