Suwa weather in September (Nagano, Japan)

Curious about the September weather in Suwa? Check out this comprehensive weather guide.

In September, Suwa typically experiences high temperatures and heavy rainfall. September is a summer month. Throughout the day, temperatures typically settle at around 24°C. But by evening, they drop to around 15°C.

Suwa in September usually receives heavy rainfall, averaging around 174 mm for the month. Typically around 19 days of rainfall is expected.

The city usually sees around 142 hours of sunlight, indicating a moderately sunny period.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Suwa. May, August and September typically offer the most agreeable circumstances. On the other hand, January, February, March and December tend to be characterized by conditions that may not be as optimal.

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

 

Suwa, monthly averages in September

Min Temperature 15°C  

Max Temperature 24°C  

Chance of Rain 63%  

Precipitation 174 mm  

Rainy days 19 days  

Humidity 72% *  

Sunshine 142 hours *  

Percentage Sunshine *  

* Data from: Kofu, Japan (59 KM, 37 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 Suwa in September?

For visitors traveling to Suwa, 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 Suwa.

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.