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Hachimantai Iwate

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Hachimantai Iwate Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Hachimantai Iwate year round climate

  • Spring (March–May): Average 4.4–15.6°C, mild climate, but still chilly in early spring, rainfall gradually increases. Common activities: Hiking, flower viewing (some species). Recommended clothing: Warm jacket, long-sleeved clothing, and umbrella.
  • Summer (June–August): Average 20.2–25.9°C, high temperature, high humidity, heavy rainfall, especially in August. Common activities: Mountain hiking, summer retreat. Recommended clothing: Light and breathable clothing, rain gear, and sunscreen.
  • Autumn (September–November): Average 7.7–21.7°C, comfortable temperature, decreased rainfall, crisp autumn weather. Common activities: Maple viewing, hiking. Recommended clothing: Light jacket, long-sleeved clothing.
  • Winter (December–February): Average -1.0–4.4°C, cold temperature, snowfall may occur, relatively low rainfall. Common activities: Skiing, snow viewing (depending on snowfall). Recommended clothing: Thick warm clothing, waterproof jacket, snow boots.

Hachimantai Iwate climatological average

Annual average temperature: approx. 12°C / Annual rainfall: approx. 1443 mm / Summer humidity: 70%–80% / Rainiest month: August

Hachimantai Iwate monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-1°C
41
February
-0.1°C
44
March
4.4°C
108.3
April
11.5°C
84.7
May
15.6°C
85.7
June
20.2°C
122.7
July
24.6°C
273
August
25.9°C
305.3
September
21.7°C
156.3
October
13.6°C
71.3
November
7.7°C
76.7
December
1°C
74.3

Hachimantai Iwate weather for the next seven days

4/15
Wednesday
Patchy rain nearby
17.5°C/4.3°C
4/16
Thursday
Patchy rain nearby
9.7°C/0.5°C
4/17
Friday
Sunny
15.7°C/-0.5°C
4/18
Saturday
Patchy rain nearby
15.7°C/3.1°C
4/19
Sunday
Patchy rain nearby
20.8°C/6.5°C
4/20
Monday
Sunny
22.6°C/6.6°C
4/21
Tuesday
Patchy rain nearby
13.3°C/3.2°C