The trip was almost exactly as described before we booked it. Even though we couldn’t speak Japanese, the guide and our fellow travelers were incredibly kind and helpful. Thanks to them, we had a wonderful and unforgettable trip.
Anonymous User
Family
Lake Onneto Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Lake Onneto year round climate
Spring (March–May): Average 32–50°F, cold and humid climate, slow temperature rise, relatively high rainfall. Common activities: Viewing snow scenery (snow may still remain in March), hiking (pay attention to keeping warm). Recommended clothing: Warm jacket, sweater, waterproof pants, windproof jacket.
Summer (June–August): Average 57–68°F, pleasant temperature, but high rainfall, especially the most rainfall in August. Common activities: Mountain hiking, lakeside walks, enjoying natural scenery. Recommended clothing: Light and breathable clothing, waterproof jacket, sun protection clothing, rain gear.
Autumn (September–November): Average 64–42°F, gradually decreasing temperature, still relatively high rainfall. Common activities: Viewing red leaves (depending on tree species), photography, enjoying the tranquil natural scenery. Recommended clothing: Warm jacket, long-sleeved clothing, waterproof jacket, comfortable hiking shoes.
Winter (December–February): Average -5.3–-36.7°F, cold and dry climate, relatively heavy snowfall. Common activities: Skiing, viewing snow scenery, experiencing snow and ice activities (depending on the actual local conditions). Recommended clothing: Thick warm jacket, hat, scarf, gloves, waterproof snow boots.
Lake Onneto climatological average
Annual average temperature: approx. 46.0°F / Annual rainfall: approx. 1093 mm / Summer humidity: 70%–80% / Rainiest month: August
Lake Onneto monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
22.5°F
38.2
February
22.6°F
32
March
32.4°F
84.4
April
43.7°F
89.4
May
50.4°F
62
June
57.4°F
98.7
July
67.1°F
127.7
August
68.7°F
175.3
September
64.2°F
122
October
53.4°F
117
November
42.3°F
72.8
December
27.3°F
73.8
Lake Onneto weather for the next seven days
8/7
Friday
Mist
73.5°F/64.4°F
8/8
Saturday
Patchy rain nearby
74.5°F/65.4°F
8/9
Sunday
Mist
65.2°F/62.4°F
8/10
Monday
Cloudy
72.6°F/61.1°F
8/11
Tuesday
Patchy rain nearby
66.8°F/61°F
8/12
Wednesday
Light rain shower
67.7°F/64.6°F
8/13
Thursday
Patchy rain nearby
68.2°F/62.6°F
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