Minamiaizu Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Minamiaizu.
Climate overview of Minamiaizu
The climate in Minamiaizu, Japan, is marked by large temperature swings across the seasons, ranging from 26°C (79°F) in August to 1°C (34°F) in January.
The city has a wet climate, receiving around 2106 mm (83 in) of rain/snowfall per year. Despite the high annual total, it has a distinct rainy season from June to October, with warm summers and very cold winters. July is the wettest month. March is the sunniest month, averaging 6.5 hours of sunshine per day.
Minamiaizu Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Minamiaizu - and find the best time to visit.
Monthly Temperature in Minamiaizu
In Minamiaizu, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 26°C (79°F) in August to a very cold 1°C (34°F) in January.
Nighttime temperatures range from 19°C (66°F) in August to -7°C (19°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Minamiaizu
Minamiaizu experiences significant rain/snowfall throughout the year, averaging 2106 mm (83 in) of precipitation annually. The seasons in Minamiaizu bring significant changes in precipitation. The wettest month, July, receives heavy rainfall, with an average of 280 mm (11 in) of precipitation. This rainfall is distributed across 23 rainy days.
In contrast, the driest month, November, experiences much less rainfall, totaling 114 mm (4.5 in) over 18 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Minamiaizu Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Minamiaizu
In Minamiaizu, summer days are longer and more sunny, with daily sunshine hours peaking at 6.5 hours in March. As the darker season arrives, the brightness of the sun becomes less. September sees a soft sun for only 3.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Minamiaizu by Month
The relative humidity is high throughout the year in Minamiaizu.
The city experiences its highest humidity in July, reaching 87%. In January, the humidity drops to its lowest level at 65%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Minamiaizu
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May
- Warmest weather: July and August
- Most sunshine: March and May
- Seasonal pattern: A distinct rainy season from June to October, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -7°C (19°F).
Frequently asked questions about the climate in Minamiaizu
What is the best time to visit Minamiaizu?
May typically offers the most optimal weather in Minamiaizu. In contrast, January, February, March, April, July, October, November and December tend to have less optimal conditions. Minamiaizu has a distinct rainy season from June to October, with warm summers and very cold winters.
What temperatures can I expect in Minamiaizu?
Daytime highs range from 1°C (34°F) in January to 26°C (79°F) in August. Nighttime lows range from -7°C (19°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Minamiaizu get?
Annual rainfall is around 2106 mm (83 in). July is the wettest month with 280 mm (11 in), while November is the driest with 114 mm (4.5 in).
How sunny is Minamiaizu?
Minamiaizu receives around 1,824 hours of sunshine per year. March is the sunniest month with 195 hours, while September is the cloudiest with just 98 hours.
Minamiaizu 3-Day Forecast
Minamiaizu on the map
Minamiaizu is highlighted - select any city to see its climate.
Popular this month
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Chase the autumn leaves in Japan
Japan is one of these cases which turns into a gold, yellow and orange fairy tale starting from September. And we can honestly say: We cannot imagine a more beautiful season to visit Japan.
Walk the 88 temple circuit
We recommend walking the 88 temple circuit from April til October. Although June, July and August can be a bit wet, hot and humid.
The famous bamboo forests of Arashiyama
The famous bamboo forests of Arashiyama lie just outside the city center of Kyoto and is unique in the world. If you look at photos of this bamboo forest, it looks like you have landed in a fairy-tale world.
10 reasons why you should visit Japan in winter
Here are 10 reasons why you should plan a winter trip to Japan. During this period, popular sights are less busy and prices for flights and hotels much cheaper.