Yamanakako Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Yamanakako.
Climate overview of Yamanakako
Yamanakako, Yamanashi, Japan, experiences significant temperature variation throughout the year. Summers bring daytime highs of 29°C (84°F) in August, while winters cool to 7°C (45°F) in January.
With around 2155 mm (85 in) of annual rain/snowfall, Yamanakako has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has a distinct rainy season from March to October, with warm summers and cold winters. The wettest month is September.
Yamanakako Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Yamanakako - and find the best time to visit.
Monthly Temperature in Yamanakako
Depending on the time of the year, temperatures range from comfortable to chilly in Yamanakako. Average daytime temperatures reach a comfortable 29°C (84°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 7°C (45°F).
At night, temperatures range from around 21°C (70°F) in August to -3°C (27°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Yamanakako
Yamanakako has a relatively rain/snowy climate with high precipitation levels, averaging 2155 mm (85 in) of rain/snowfall annually. Yamanakako can be quite wet during September, receiving approximately 274 mm (11 in) of precipitation over 19 rainy days.
In contrast, during the driest month (December), you will experience much drier conditions, with 86 mm (3.4 in) of precipitation spread across 10 rainy days. For more details, please visit our Yamanakako Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Humidity in Yamanakako by Month
The relative humidity is high throughout the year in Yamanakako.
The city experiences its highest humidity in July, reaching 79%. In December, the humidity drops to its lowest level at 47%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Yamanakako
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
- Fewest rainy days: January, November and December
- Seasonal pattern: a distinct rainy season from March to October, with warm summers and cold winters
- Coldest conditions: January, with freezing nights around -3°C (27°F).
Frequently asked questions about the climate in Yamanakako
What is the best time to visit Yamanakako?
May typically offers the most optimal weather in Yamanakako. In contrast, January, February, March, September and December tend to have less optimal conditions. Yamanakako has a distinct rainy season from March to October, with warm summers and cold winters.
What temperatures can I expect in Yamanakako?
Daytime highs range from 7°C (45°F) in January to 29°C (84°F) in August. Nighttime lows range from -3°C (27°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Yamanakako get?
Annual rainfall is around 2155 mm (85 in). September is the wettest month with 274 mm (11 in), while December is the driest with 86 mm (3.4 in).
Yamanakako 3-Day Forecast
Yamanakako 3-Day Forecast
Yamanakako on the map
Yamanakako is highlighted - select any city to see its climate.
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