Iwanai weather in August (Hokkaido, Japan)

What does the weather outlook for Iwanai look like in August? Check out our in-depth weather guide for this month.

Temperatures

August in Iwanai generally includes high temperatures and heavy rainfall. The summer season takes place during August. Anticipate daytime highs near 25°C, and cooler nights with temperatures around 18°C. On average, it has the peak temperatures of the year.

Precipitation

Iwanai in August usually receives heavy rainfall, averaging around 171 mm for the month. Known for its peak rainfall, this month often has intense showers. It's wise to carry a poncho to protect yourself from the rain. You can typically expect 18 days days of rain this month, based on climate records.

Average sunshine

With about 172 hours of sunshine, the area enjoys a nice balance of sun and clouds, creating a pleasant environment.

If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit. June, July, August and September generally stand out with 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 Iwanai climate page with graphs.

 

Iwanai, monthly averages in August

Min Temperature 18°C  

Max Temperature 25°C  

Chance of Rain 61%  

Precipitation 171 mm  

Rainy days 18 days  

Humidity 75% *  

Sunshine 172 hours *  

Percentage Sunshine *  

Data from: Sapporo, Japan (69 KM, 43 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?

For visitors traveling to Iwanai, 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.

Swimming

7/10

Camping

6/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Iwanai.

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.