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 39–60°F, 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 68–78°F, 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 45–71°F, comfortable temperature, decreased rainfall, crisp autumn weather. Common activities: Maple viewing, hiking. Recommended clothing: Light jacket, long-sleeved clothing.
Winter (December–February): Average -33–39°F, 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. 53.6°F / Annual rainfall: approx. 1443 mm / Summer humidity: 70%–80% / Rainiest month: August
Hachimantai Iwate monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
30.2°F
41
February
31.8°F
44
March
39.9°F
108.3
April
52.7°F
84.7
May
60.1°F
85.7
June
68.4°F
122.7
July
76.3°F
273
August
78.6°F
305.3
September
71.1°F
156.3
October
56.5°F
71.3
November
45.9°F
76.7
December
33.8°F
74.3
Hachimantai Iwate weather for the next seven days
7/24
Friday
Fog
73.8°F/68.2°F
7/25
Saturday
Fog
69.8°F/66.5°F
7/26
Sunday
Moderate rain
67.8°F/65.1°F
7/27
Monday
Light rain shower
71.7°F/64.4°F
7/28
Tuesday
Fog
80°F/62.5°F
7/29
Wednesday
Fog
74.3°F/62.8°F
7/30
Thursday
Fog
78.5°F/63.3°F
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