We visited on October 6th, and the weather forecast predicted a 90% chance of rain, but the weather was surprisingly good when we arrived! After lunch (the hamburger steak wasn't to my liking), we quickly took the cable car up the mountain. The view was clear, but most of the autumn leaves had already withered, leaving only a mix of yellow, orange, and green leaves. The view of Mount Asahidake from Sugami Station was breathtaking! My mom decided to wait for me at the first observation deck because the path was a bit difficult for her as she's not used to exercise. So, I quickly made my way to the fifth observation deck, and the view there was truly stunning!
Anonymous user
Family
Best time to visit Asahi-dake
Data source:Meteostat Last updated:2025-09
Weather in Asahi-dake throughout the year
Spring (March–May): Average -1.2–12.2°C, cold climate, gradually warming. There is still a possibility of snowfall in March, snowmelt begins in April, and temperatures rise in May. Common activities: Snow viewing (March), hiking (May, depending on snow conditions). Recommended clothing: Warm coat, waterproof clothing, hat, gloves, scarf (March), warm coat or light jacket, comfortable trousers (May).
Summer (June–August): Average 16.8–22.1°C, cool climate, higher humidity, frequent rainfall, especially in August. Common activities: Hiking, viewing alpine plants, camping (check campsite availability). Recommended clothing: Light and breathable clothing, waterproof jacket, comfortable hiking shoes.
Autumn (September–November): Average 9.6–16.9°C, comfortable climate, gradually decreasing temperatures, more rainfall, pay attention to mountain weather changes. Common activities: Viewing autumn leaves (depending on foliage conditions), hiking. Recommended clothing: Warm coat, comfortable trousers, waterproof clothing.
Winter (December–February): Average -8.4–-1.2°C, cold climate, deep snow, low temperatures and much snow and wind. Common activities: Skiing, snowshoeing (check snow conditions and activity availability). Recommended clothing: Thick warm coat, waterproof and windproof clothing, hat, gloves, scarf, warm snow boots.
Weather in Asahi-dake
Annual average temperature: approx. 7.2°C / Annual rainfall: approx. 1426 mm / Summer humidity: 70%–80% / Rainiest month: August
Asahi-dake weather by month
Month
Temperature (°C)
Rainfall (mm)
January
-8.4°C
58.4
February
-7.1°C
48.7
March
-1.2°C
65.6
April
7°C
70.7
May
12.2°C
88.9
June
16.8°C
175.4
July
21.4°C
144.5
August
22.1°C
250.6
September
16.9°C
179.5
October
9.6°C
144.3
November
3.1°C
117.6
December
-5.7°C
82.3
7-day weather forecast for Asahi-dake
10/31
Saturday
Patchy rain nearby
12.9°C/2.1°C
11/1
Sunday
Light snow showers
3.4°C/-0.7°C
11/2
Monday
Overcast
6.2°C/-1.5°C
11/3
Tuesday
Heavy snow
3.7°C/-0.9°C
11/4
Wednesday
Moderate or heavy snow showers
3.4°C/-2.5°C
11/5
Thursday
Overcast
6.4°C/-3.6°C
11/6
Friday
Patchy rain nearby
10.7°C/0.7°C
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