Unzen weather in September (Nagasaki, Japan)

What's the typical weather in Unzen for September? Check out this detailed guide to the month’s weather conditions.

Temperatures

September in Unzen generally includes high temperatures and heavy rainfall. September is part of the summer season. The temperature during the day can rise to approximately 29°C. At night, it falls to around 22°C. Expect some days to be hotter than these averages. Stay cool by wearing light clothing and drinking plenty of water throughout the day.

Precipitation

Unzen in September falls under the rainy season with heavy rainfall, averaging around 215 mm for the month. Rain is expected on roughly 17 days.

Average sunshine

Expect a moderate amount of sunlight, with approximately 173 hours. This means a pleasant mix of sun and clouds.

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

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

 

Unzen, monthly averages in September

Min Temperature 22°C  

Max Temperature 29°C  

Chance of Rain 57%  

Precipitation 215 mm  

Rainy days 17 days  

Humidity 74% *  

Sunshine 173 hours *  

Percentage Sunshine 46% *  

Data from: Nagasaki, Japan (32 KM, 19 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 Unzen.

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.