Iriomote weather in September (Iriomote Island, Japan)

What can you expect from the weather in Iriomote during September? This guide provides all the details you need.

In September, Iriomote typically experiences high temperatures and heavy rainfall. Daytime temperatures hover around 29°C, while nights can cool down to about 27°C. Keep in mind, these temperatures are averages, and some days might be even warmer. Dress suitably to manage the heat.

Iriomote in September usually receives heavy rainfall, averaging around 241 mm for the month. Rain is expected on roughly 21 days.

The city usually sees around 180 hours of sunlight, indicating a moderately sunny period.

If your ideal day consists of dry skies and moderate temperatures January, February, March, April, May, June, October, November and December generally stand out with the best circumstances. While August tends to showcase less optimal conditions.

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

 

Iriomote, monthly averages in September

Min Temperature 27°C  

Max Temperature 29°C  

Chance of Rain 70%  

Precipitation 241 mm  

Rainy days 21 days  

Humidity 80%  

Sunshine 180 hours  

Percentage Sunshine  

Where to go in Japan in September

Find out more about the weather in Japan in September 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 Iriomote in September?

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 September.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Interested in more climate information?

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

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.