Oshima weather in September (Tokyo Prefecture, Japan)

What kind of weather does September bring to Oshima? Check out this detailed guide to the month’s weather conditions.

Temperatures

In September, Oshima typically experiences high temperatures and heavy rainfall. September is typically considered a summer month. Daytime temperatures are expected to be around 27°C, cooling off to about 23°C at night.

Precipitation

Oshima in September usually receives heavy rainfall, averaging around 244 mm for the month. Past climate data indicates that roughly 20 days will see rain.

In case you lean more towards enjoying temperate temperatures and rain-free days August typically offers the most optimal weather. In contrast, January, February, March, June and October tend to have less optimal conditions.

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

 

Oshima, monthly averages in September

Min Temperature 23°C  

Max Temperature 27°C  

Chance of Rain 65%  

Precipitation 244 mm  

Rainy days 20 days  

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.

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 Oshima.

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.