Weathermondo.com
United StatesThe weather in September in Marietta
It's warm in September in Marietta 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 16°C and 21°C.
Looking for great weather? September is a good time to be in Marietta. The temperatures are nice, and there’s not too much 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 Marietta, Georgia. 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 2019, Marietta reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 17°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 8°C to a highest value of 24°C.
Rainfall amount
In September, there is an average of 84 mm of precipitation, spread over 11 days. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in September for Marietta
Click on any day in September to get detailed info about the usual weather on that day in Marietta. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Marietta | New York | |
|---|---|---|
| Average temperature | 29°C | 27°C |
| Max. temperature | 31°C | 31°C |
| Min. temperature | 16°C | -5°C |
| Total precipitation | 84 mm | 57 mm |
| Rainy days | 11 days | 9 days |
Start of September
The month of September starts in Marietta with hot temps, averaging around 31°C during the day and nights around 21°C.
Mid September
By mid-September, daytime temps drop to around 29°C, with nights around 20°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 Marietta is around 28°C, while nighttime temps are about 18°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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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.
Check out the climate of Marietta for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Marietta, Georgia. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Marietta
Temperature in September in Marietta over the years
Precipitation charts
These charts show the average amount of precipitation in September in Marietta, Georgia. 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 Marietta
Total precipitation in September in Marietta over the years
Daily UV index in September in Marietta
This chart shows the average daily UV index in September in Marietta, 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 Marietta
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Average weather in Marietta by month
Click on a month below to see detailed weather info for Marietta. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.