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Minamiaizu

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Minamiaizu Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Minamiaizu year round climate

  • Spring (March–May): Average 12.3–22.9°C, mild climate. Temperatures gradually warm starting in March; April offers pleasant temperatures, while May is warm. Rainfall gradually increases. Common activities: Sightseeing, flower viewing. Suggested clothing: Light jacket, long-sleeved shirt; warm clothing for mornings and evenings.
  • Summer (June–August): Average 26.1–31.1°C, hot temperatures. June to August experience higher rainfall and humidity. Common activities: Summer resort activities, stream play, hiking (be sure to protect yourself from the sun and stay hydrated). Suggested clothing: Light and breathable clothing, sun hat, sunglasses.
  • Autumn (September–November): Average 21.1–28.0°C, pleasant climate. September remains warm, with temperatures gradually cooling down after October. Rainfall decreases compared to summer. Common activities: Maple leaf viewing, hiking. Suggested clothing: Light jacket, long-sleeved shirt.
  • Winter (December–February): Average 7.3–9.7°C, cold temperatures, low rainfall. Common activities: Skiing (if there are nearby resorts), onsen experience. Suggested clothing: Warm coat, hat, gloves, scarf.

Minamiaizu climatological average

Annual average temperature: approx. 19°C / Annual rainfall: approx. 1745 mm / Summer humidity: 70%–80% / Rainiest month: June

Minamiaizu monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
7.3°C
29.4
February
9°C
73.3
March
12.3°C
150.3
April
18.8°C
166.9
May
22.9°C
189.2
June
26.1°C
263.2
July
30.3°C
134.9
August
31.1°C
225.3
September
28°C
242.4
October
21.1°C
142.8
November
14.4°C
93.1
December
9.7°C
34.8

Minamiaizu weather for the next seven days

9/4
Friday
Overcast
27.4°C/22.8°C
9/5
Saturday
Patchy rain nearby
22.3°C/20.5°C
9/6
Sunday
Patchy rain nearby
22.9°C/19.8°C
9/7
Monday
Light rain shower
24.8°C/19.1°C
9/8
Tuesday
Light rain shower
23.6°C/19.1°C
9/9
Wednesday
Light rain shower
21.4°C/19.9°C
9/10
Thursday
Patchy rain nearby
22°C/21.1°C

Minamiaizu Frequently Asked Questions and Useful Information for Travel

Is traveling to Minamiaizu safe?

Travel to most areas in Fukushima Prefecture is safe. Following decontamination and reconstruction efforts, tourism has resumed. Popular attractions like Aizu-Wakamatsu, Ouchi-juku, and Lake Inawashiro are far from the nuclear disaster areas and can be visited with peace of mind. The Fukushima Prefectural Government continuously conducts radiation monitoring and publicly shares real-time data. Travelers should avoid 'difficult-to-return zones'. Overall, radiation levels in Fukushima Prefecture have significantly decreased, with minimal impact on health.

What is the best season to visit Minamiaizu?

Minamiaizu experiences distinct seasons, each with its own charm. Spring is the best season for sightseeing, with many ancient cherry trees and famous viewing spots across the prefecture. The scenery is breathtaking when the cherry blossoms are in full bloom. Autumn also offers stunning views as the maple leaves turn red.

Are there radiation concerns in the Minamiaizu region?

While radioactive materials were indeed present in the Fukushima region, extensive decontamination work and the passage of time have significantly reduced radiation levels in most areas, bringing them close to or below background levels. The Japanese government has lifted evacuation orders for some areas. Some areas remain as 'difficult-to-return zones,' and soil treatment is an ongoing issue. Please stay updated with the latest official information when visiting Minamiaizu.

When does it snow in Minamiaizu?

The snow season in Minamiaizu typically begins in December and lasts until March of the following year. In winter, Minamiaizu is covered in a blanket of snow, creating a beautiful silvery-white landscape perfect for experiencing a snow country atmosphere.

What are the must-visit attractions in Minamiaizu?

Minamiaizu offers a wealth of natural scenery and historical cultural attractions. You can visit Ouchi-juku, renowned as one of Japan's three great thatched-roof villages, and experience the atmosphere of the Edo period. Additionally, natural landscapes like Tōge and Mount Aizu-komagatake are ideal for hiking and enjoying beautiful scenery.