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Hirayu Onsen

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Hirayu Onsen Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Hirayu Onsen year round climate

  • Spring (March–May): Average 41–59°F, mild climate, but relatively high rainfall, especially in April and May. Common activities: Hiking (be aware of changing weather conditions), onsen bathing. Recommended clothing: Light jacket, warm clothing, rain gear.
  • Summer (June–August): Average 68–77°F, hot and humid, frequent rainfall, with July being the rainiest month. Common activities: Summer resort, viewing alpine plants, stream activities. Recommended clothing: Breathable clothing, sun hat, rain gear.
  • Autumn (September–November): Average 46–73°F, comfortable climate, but large temperature difference between morning and evening, relatively high rainfall. Common activities: Autumn leaves viewing, onsen bathing, hiking. Recommended clothing: Comfortable and breathable clothing, light jacket, warm underwear.
  • Winter (December–February): Average -33–46°F, cold and dry, low probability of snowfall. Common activities: Skiing (confirm snow conditions), onsen bathing, enjoying the winter tranquility. Recommended clothing: Thick warm clothing, waterproof jacket, hat, gloves, scarf.

Hirayu Onsen climatological average

Annual average temperature: approx. 53.6°F / Annual rainfall: approx. 1883 mm / Summer humidity: 70%–80% / Rainiest month: July

Hirayu Onsen monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
30°F
85.6
February
32.7°F
85.1
March
41°F
159.9
April
53.8°F
174.3
May
59.4°F
216.8
June
68.2°F
213.6
July
76.5°F
222.8
August
77.2°F
145.9
September
73°F
218.2
October
57°F
160.6
November
46.9°F
123.2
December
35.2°F
77.8

Hirayu Onsen weather for the next seven days

2/11
Wednesday
Heavy snow
36.6°F/23.8°F
2/12
Thursday
Moderate snow
35.4°F/13°F
2/13
Friday
Sunny
40.6°F/12.5°F
2/14
Saturday
Light freezing rain
45.9°F/19.1°F
2/15
Sunday
Sunny
50.7°F/22.8°F
2/16
Monday
Moderate or heavy snow showers
36.9°F/23.7°F
2/17
Tuesday
Light freezing rain
39.8°F/20.1°F