Isahaya weather in September (Nagasaki, Japan)

What kind of weather does September bring to Isahaya? Here's what you need to know about the weather for the month.

Temperatures

The month of September in Isahaya typically brings high temperatures and heavy rainfall. Summer occurs in September. During the day, temperatures usually reach up to 28°C. At night, they tend to fall to approximately 23°C.

Precipitation

Isahaya in September falls under the rainy season with heavy rainfall, averaging around 211 mm for the month. This month experiences about 17 days of rain according to historical data.

Average sunshine

The area experiences a moderate amount of sunshine, with approximately 173 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If your ideal day consists of dry skies and moderate temperatures October generally stands out with the best circumstances. While February, June and July tend to showcase less optimal conditions.

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

 

Isahaya, monthly averages in September

Min Temperature 23°C  

Max Temperature 28°C  

Water Temperature 26°C *  

Chance of Rain 57%  

Precipitation 211 mm  

Rainy days 17 days  

Humidity 74% *  

Windspeed 4 km/h *  

Sunshine 173 hours *  

Percentage Sunshine 46% *  

* Data from: Nagasaki, Japan (23 KM, 14 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. With a water temperature of around 26°C this is a great month to swim so bring your swimwear.

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 Isahaya.

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.