Yamanouchi weather in September (Nagano, Japan)

Planning a trip to Yamanouchi in September? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In September, Yamanouchi generally has high temperatures and heavy rainfall. September is a summer month. Anticipate daytime temperatures around 24°C, while night temperatures can drop to 15°C.

Yamanouchi in September falls under the rainy season with heavy rainfall, averaging around 192 mm for the month. Typically around 21 days of rainfall is expected.

The area experiences a moderate amount of sunshine, with approximately 142 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If you prefer dry days with pleasant temperatures, May typically offers the best circumstances. While January, February, March, April, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Yamanouchi climate page with graphs.

 

Yamanouchi, monthly averages in September

Min Temperature 15°C  

Max Temperature 24°C  

Chance of Rain 68%  

Precipitation 192 mm  

Rainy days 21 days  

Humidity 74% *  

Sunshine 142 hours *  

Percentage Sunshine *  

* Data from: Nagano, Japan (27 KM, 17 Miles).

Where to go in Japan in September

Find out more about the weather in Japan in September and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Yamanouchi in September?

For visitors traveling to Yamanouchi, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming

7/10

Camping

6/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Yamanouchi.

Our site offers climate and forecast data for every country in the world. Are you going to Japan? On this website you can find historical weather averages for many cities in Japan. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.