Spring (March–May): Average -2–10°C. Temperatures gradually rise, transitioning from severe cold to mild. Rainfall is low throughout the year. Snow cover remains in March, marking the end of the ski season. In April and May, temperatures rise and snow gradually melts. Common activities: Skiing or snowboarding in March; spring hiking in April and May to enjoy the natural landscape after the snowmelt. Suggested attire: March: Heavy warm clothing, ski gear. April and May: Layered clothing, warm jackets, sweaters.
Summer (June–August): Average 15–21°C. The climate is mild and comfortable, making it the warmest season of the year. Rainfall remains relatively low, but August is the rainiest month of the year (9.4mm). Common activities: Hiking, mountain biking, exploring nearby nature trails, enjoying outdoor hot springs. Suggested attire: Short-sleeved tops, thin long-sleeved shirts, light jackets (due to significant temperature differences between morning and evening).
Autumn (September–November): Average 3–17°C. Temperatures gradually drop, with crisp autumn weather. Rainfall continues to be low. September is cool and pleasant, while October and November see a noticeable drop in temperature as winter approaches. Common activities: Admiring autumn foliage (if present), hiking, enjoying the crisp mountain air. Suggested attire: September: Sweaters, light jackets. October and November: Warm jackets, thick sweaters, scarves, gloves.
Winter (December–February): Average -5–-4°C. Extremely cold, with temperatures remaining below freezing. Rainfall (meaning liquid precipitation) is extremely low, but as a ski resort, abundant snowfall is expected. Common activities: Skiing, snowboarding, snowshoe hiking, warming up in hot springs. Suggested attire: Extreme cold weather clothing, thermal base layers, waterproof and windproof jackets, hats, gloves, scarves.
Asarigawa Onsen Ski Resort climatological average
Annual average temperature: approx. 7.3°C / Annual rainfall: approx. 58 mm / Summer humidity: 65-75% / Rainiest month: August
Asarigawa Onsen Ski Resort monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-4.2°C
6.8
February
-4.6°C
3.6
March
-2.5°C
2.9
April
6°C
3.6
May
10.4°C
3.3
June
15°C
3.8
July
19.4°C
6.8
August
21.1°C
9.4
September
16.7°C
3.2
October
10.9°C
7.7
November
3.4°C
5.2
December
-4.5°C
2.6
Asarigawa Onsen Ski Resort weather for the next seven days
11/7
Friday
Moderate rain
6.6°C/2.8°C
11/8
Saturday
Patchy rain nearby
4.5°C/-0.6°C
11/9
Sunday
Moderate rain
8.4°C/0°C
11/10
Monday
Moderate rain
6.2°C/3.2°C
11/11
Tuesday
Moderate rain
5.3°C/2.4°C
11/12
Wednesday
Patchy rain nearby
6.2°C/0.9°C
11/13
Thursday
Patchy rain nearby
7.5°C/1°C
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