Weathermondo.com
JapanThe weather in September in Usa
It's warm in September in Usa with an average temperature of 29°C. Temperatures this month range from a low of 27°C to a high of 31°C. At night, you can expect temperatures between 21°C and 25°C.
Looking for sun? September isn’t a good month to be in Usa. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Usa, Japan. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2023, Usa reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 22°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 28°C.
Rainfall amount
In September, there is an average of 334 mm of precipitation, spread over 24 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
Daily weather in September for Usa
Click on any day in September to get detailed info about the usual weather on that day in Usa. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Usa | New York | |
|---|---|---|
| Average temperature | 29°C | 27°C |
| Max. temperature | 31°C | 31°C |
| Min. temperature | 21°C | -5°C |
| Total precipitation | 334 mm | 57 mm |
| Rainy days | 24 days | 9 days |
Start of September
The month of September starts in Usa with hot temps, averaging around 31°C during the day and nights around 24°C.
Mid September
By mid-September, daytime temps drop to around 30°C, with nights around 23°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Usa is around 29°C, while nighttime temps are about 22°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
The typhoon season in Usa runs from June to November.
Check out the climate of Usa 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, Osaka, or explore other destinations in Japan.
Temperature charts
These charts show the average temperatures in September in Usa, Japan. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Usa
Temperature in September in Usa over the years
Precipitation charts
These charts show the average amount of precipitation in September in Usa, Japan. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Usa
Total precipitation in September in Usa over the years
Daily UV index in September in Usa
This chart shows the average daily UV index in September in Usa, 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.
Weather experiences in September in Usa
Have you been to Usa in September?
Share your weather experience in September in Usa.
Average weather in Usa by month
Click on a month below to see detailed weather info for Usa. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.