Karuizawa weather in August (Nagano, Japan)

How is August weather typically in Karuizawa? This guide provides the necessary weather information for your travel plans.

Temperatures

August in Karuizawa generally includes high temperatures and heavy rainfall. August is a notable month of the summer season. Daytime temperatures generally settle around 28°C, while nighttime can see a dip to about 19°C. The warmest month of the year calls for summer outfits and sun protection. Enjoy the heat but make sure to stay cool and hydrated.

Precipitation

Karuizawa in August falls under the rainy season with heavy rainfall, averaging around 211 mm for the month. Looking at the last 30 years, the data shows about 20 days with rain.

Average sunshine

Enjoy a sunny month with about 206 hours of sunshine, providing a cheerful and lively atmosphere.

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 and which places have the best travel 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 this month?

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.

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Interested in more climate information?

This site 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 travel conditions. Find out where to go with our weather planner.