Koyasan weather in September (Wakayama, Japan)

Can you expect sunny skies in Koyasan in September? Is now the perfect time to visit? Find all the weather insights for this month on this page.

Temperatures

In September, Koyasan typically experiences high temperatures and heavy rainfall. September is part of summer. Throughout the daytime, temperatures often hover around 28°C. However, as the sun sets and evening approaches, there's a noticeable cool-down. Temperatures gently drop to a more temperate 19°C.

Precipitation

Koyasan in September usually receives heavy rainfall, averaging around 214 mm for the month. The climate data from previous years indicates that there are typically about 18 days days of rain.

Average sunshine

The area experiences a moderate amount of sunshine, with approximately 162 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

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, June and July tend to have less optimal conditions.

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

 

Koyasan, monthly averages in September

Min Temperature 19°C  

Max Temperature 28°C  

Chance of Rain 61%  

Precipitation 214 mm  

Rainy days 18 days  

Humidity 73% *  

Sunshine 162 hours *  

Percentage Sunshine *  

Data from: Wakayama, Japan (37 KM, 23 Miles).

Where to go in Japan in September

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 Koyasan.

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.