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Osaka weather in September (Osaka Prefecture, Japan)

How is the weather in Osaka in September? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In September, Osaka generally has very high temperatures and heavy rainfall. September falls within the summer season. Anticipate daytime temperatures around 30°C, while night temperatures can drop to 21°C.

Keep in mind that while these are the average temperatures, there can be days that are even hotter. It's essential to be prepared for such heat. Wearing light, breathable fabrics and protecting yourself from the sun's intensity with hats or shades can make a difference. Hydration is key, so remember to drink plenty of water, especially if you find yourself outdoors for extended periods.

Osaka in September usually receives heavy rainfall, averaging around 176 mm for the month. Based on our climate data of the past 30 years, about 18 days of rain are anticipated.

The area enjoys a balanced 156 hours of sunlight. Ensuring it's neither too overcast nor too sunny.

In case you lean more towards enjoying temperate temperatures and rain-free days April, May, October and November typically offer the most optimal weather. In contrast, January tends to have less optimal conditions.

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

 

Osaka, monthly averages in September

Min TemperatureMin Temperature 21°C  
Max TemperatureMax Temperature 30°C  
Chance of RainChance of Rain 58%  
PrecipitationPrecipitation 176 mm  
Rainy daysRainy days 18 days  
HumidityHumidity 67%  
SunshineSunshine 156 hours  
Percentage SunshinePercentage 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.

Map not visible? Whoops sorry! Please refresh the page.
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 Osaka 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
6/10
Outdoor sports
7/10

Interested in more climate information?

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

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.