JapanAverage weather for Osaka in September
It's warm in September in Osaka with an average temperature of 25°C. Temperatures this month range from a low of 22°C to a high of 28°C. At night, you can expect temperatures between 14°C and 20°C.
Start of September
The month of September starts in Osaka with hot temps, averaging around 27°C during the day and nights around 20°C. There are plenty of days with a good chance of precipitation.
With the temperature difference between day and night, it’s smart to wear layers.
Mid September
By mid-September, daytime temps drop to around 25°C, with nights around 18°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in Osaka is around 24°C, while nighttime temps are about 15°C. There’s a significant chance of many days with precipitation.
In September, there is an average of 189 mm of precipitation, spread over 12 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Osaka in September |
New York | ||
|---|---|---|---|
 Average temperature |
25°C | 27°C | |
 Max. temperature |
28°C | 31°C | |
| Min. temperature |
22°C | -5°C | |
 Total precipitation |
189 mm | 57 mm | |
| Rainy days |
12 days | 9 days | |
August
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit Osaka?
Looking for sun? September isn’t a good month to be in Osaka. The temperature is nice, but there’s too much chance of rain.
The typhoon season in Osaka runs from June to November.
Temperature records
With 33°C in 2023, Osaka reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 15°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 7°C to a highest value of 23°C.
Check out the climate of Osaka for all months and discover the best travel time
Curious about the weather in other parts of Japan? Check out the climate and weather for spots like Tokyo, Kyōto, Hokkaido, or explore other destinations in Japan.
Daily Temperature in September in Osaka
This chart shows the average daily high and low temperatures in September for Osaka, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Osaka
The chart below shows the average daily precipitation in September for Osaka, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 12 days of precipitation in Osaka.
Daily UV index in September in Osaka
This chart shows the average daily UV index in September in Osaka, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Osaka over the years
This chart shows the average temperature in September in Osaka, measured in degrees Celsius, over the past few years.
Total precipitation in September in Osaka over the years
This chart shows the average precipitation in September in Osaka, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Osaka
Click on any day in September to get detailed info about the usual weather on that day in Osaka. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Osaka
Have you been to Osaka in September?
Share your weather experience in September in Osaka.
Average weather in Osaka by month
Click on a month below to see detailed weather info for Osaka. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
