Iiyama weather in August (Nagano, Japan)

How does the weather in Iiyama usually fare in August? Our guide gives you the essential weather details for this month.

Temperatures

The typical weather for August in Iiyama includes high temperatures and heavy rainfall. The month of August belongs to the summer season. Daytime temperatures are expected to be around 29°C, cooling off to about 20°C at night. Prepare for the warmest month of the year with plenty of summer clothes. Whether you're relaxing or active, staying cool and protected is key.

Precipitation

Iiyama in August falls under the rainy season with heavy rainfall, averaging around 197 mm for the month. Past climate data indicates that roughly 19 days will see rain.

Average sunshine

With approximately 197 hours hours of sun, the days are filled with brightness. It makes it a perfect month for outdoor activities.

If your ideal day consists of dry skies and moderate temperatures May generally stands out with the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.

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

 

Iiyama, monthly averages in August

Min Temperature 20°C  

Max Temperature 29°C  

Chance of Rain 63%  

Precipitation 197 mm  

Rainy days 19 days  

Humidity 77% *  

Sunshine 197 hours *  

Percentage Sunshine *  

Data from: Joetsu, Japan (30 KM, 18 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

7/10

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 Iiyama.

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.