Karuizawa weather in August (Nagano, Japan)

How is the weather in Karuizawa in August? This guide provides all the details you need.

In August, Karuizawa typically experiences high temperatures and heavy rainfall. August is a summer month. Throughout the day, temperatures typically settle at around 28°C. But by evening, they drop to around 19°C. Typically, it's the hottest month of the year. Make sure to come prepared with breezy outfits. Whether you're out exploring or just lounging, being prepared can make your experience in this warm month much more enjoyable.

Karuizawa in August falls under the rainy season with heavy rainfall, averaging around 211 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 20 days of the month will see rainfall.

The city usually sees around 206 hours of sunlight, indicating many sunny days.

In case you lean more towards enjoying temperate temperatures and rain-free days May typically offers the most optimal weather. In contrast, January, February, March and December tend to have less optimal conditions.

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

 

Karuizawa, monthly averages in August

Min Temperature 19°C  

Max Temperature 28°C  

Chance of Rain 67%  

Precipitation 211 mm  

Rainy days 20 days  

Humidity 72% *  

Sunshine 206 hours *  

Percentage Sunshine *  

* Data from: Nagano, Japan (52 KM, 32 Miles).

Where to go in Japan in August

Find out more about the weather in Japan in August 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 Karuizawa in August?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.

What To Do

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

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Interested in more climate information?

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

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.