I was so happy to join a day tour for the first time. Our tour guide, Jiajia, spoke in three languages and took turns to guide us. She was really hardworking and professional, and she shared everything she knew without reservation. I was so happy to have her lead the way 😊 The itinerary, including Noboribetsu Jigokudani (Hell Valley), Cape Chikyu (Cape Chikyu), the Usuyama Ropeway, the Lake Toya Observatory, and Meisui Park, was all perfectly timed!
Anonymous User
Couple
Mount Yari Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Mount Yari year round climate
Spring (March–May): Average 36–53°F, with fluctuating temperatures and moderate rainfall. Common activities: Hiking, enjoying volcanic views. Recommended clothing: Warm jacket, comfortable and breathable clothing, and rain gear.
Summer (June–August): Average 60–73°F, warm and humid with higher rainfall, especially in August. Common activities: Onsen (hot spring) bathing, enjoying lakeside scenery. Recommended clothing: Light and breathable clothing and rain gear.
Autumn (September–November): Average 56–68°F, pleasant and comfortable with decreasing rainfall. Common activities: Viewing autumn leaves, hiking. Recommended clothing: Light jacket and long-sleeved shirt.
Winter (December–February): Average -1.7–-32.4°F, cold and dry with low chance of snowfall. Common activities: Skiing (depending on snow conditions), onsen bathing. Recommended clothing: Heavy warm clothing, waterproof jacket, hat, gloves, and scarf.
Mount Yari climatological average
Annual average temperature: approx. 49.5°F / Annual rainfall: approx. 1146 mm / Summer humidity: 70%–80% / Rainiest month: August
Mount Yari monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
28.9°F
62.5
February
29.8°F
29.6
March
36.7°F
53.2
April
46.6°F
53.1
May
53.4°F
66.8
June
60.8°F
149.2
July
70.5°F
116.1
August
73°F
218.8
September
68°F
166.8
October
56.8°F
118.4
November
45°F
73.2
December
31.6°F
38.6
Mount Yari weather for the next seven days
6/23
Tuesday
Patchy rain nearby
57°F/54.2°F
6/24
Wednesday
Patchy rain nearby
63.5°F/53°F
6/25
Thursday
Patchy rain nearby
66.6°F/52.9°F
6/26
Friday
Moderate rain
63.1°F/58.1°F
6/27
Saturday
Patchy rain nearby
67.4°F/55.8°F
6/28
Sunday
Sunny
65.2°F/53.6°F
6/29
Monday
Overcast
66.5°F/54.1°F
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