September weather forecast
Sandy Springs, GA

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Weather in September

September brings relief to Sandy Springs with a marked decrease in temperature. As the city transitions from the sweltering summer to the moderate autumn, one witnesses a balance between temperatures and the gradual introduction of chilly weather. Starting from September, rainfall days and humidity both show decline, paving way for the city's dry season. Characterized as a relatively calm and mild month, it offers a perfect climate for outdoor activities before colder months arrive. As we move into October, one should anticipate shorter days, reduced temperatures, and the true advent of autumn.

Temperature

September ushers in a minute temperature change in Sandy Springs, with average high-temperatures reducing from August's hot 89.6°F (32°C) to a moderately hot 84°F (28.9°C). Throughout September nights, Sandy Springs registers an average low-temperature of 65.5°F (18.6°C).

Heat index

In September, the average heat index is estimated at a hot 89.6°F (32°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
Consider that heat index readings are for situations in the shade and light wind. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

In Sandy Springs, the average relative humidity in September is 69%.

Rainfall

In Sandy Springs, in September, during 12.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 180.4 rainfall days, and 42.91" (1090mm) of precipitation is accumulated.

Snowfall

In Sandy Springs, snow does not fall in April through October.

Daylight

In Sandy Springs, the average length of the day in September is 12h and 22min.
On the first day of September in Sandy Springs, Georgia, sunrise is at 7:11 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:22 pm EDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index in Sandy Springs, Georgia, is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

How hot is it in Sandy Springs in September?

In September, in Sandy Springs, the average high-temperature is 84°F (28.9°C), and the average low-temperature is 65.5°F (18.6°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 89.6°F (32°C).

What is the average humidity in September in Sandy Springs?

In Sandy Springs, the average relative humidity in September is 69%.

How much does it rain in Sandy Springs in September?

In Sandy Springs, in September, during 12.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

When it does not snow in Sandy Springs?

April through October are months without snowfall in Sandy Springs.

How many hours of daylight does Sandy Springs have in September?

In Sandy Springs, Georgia, the average day length in September is 12h and 22min.

When are sunrise and sunset in September in Sandy Springs?

In September, on the first day of the month, sunrise is at 7:11 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:22 pm EDT.

How many hours of sunshine does Sandy Springs have in September?

In September, the average sunshine duration in Sandy Springs is 8.5h.

What is the UV index intensity in September in Sandy Springs?

In Sandy Springs, Georgia, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Sandy Springs, GA

Average temperature in September - Sandy Springs, GA
  • Average high temperature in September: 84°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in September: 65.5°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

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Average pressure in September
Sandy Springs, GA

Average pressure in September - Sandy Springs, GA
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in September
Sandy Springs, GA

Average wind speed in September - Sandy Springs, GA
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in September
Sandy Springs, GA

Average humidity in September - Sandy Springs, GA
  • Average humidity in September: 69%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (68%).

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Average rainfall in September
Sandy Springs, GA

Average rainfall in September - Sandy Springs, GA
  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is August (5.16").
The driest month (with the least rainfall) is October (2.17").

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Average rainfall days in September
Sandy Springs, GA

Average rainfall days in September - Sandy Springs, GA
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is October (9.5 days).

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Average snowfall in September
Sandy Springs, GA

Average snowfall in September - Sandy Springs, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.14").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Sandy Springs, GA

Average snowfall days in September - Sandy Springs, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Sandy Springs, GA

Average daylight in September / Average sunshine in September - Sandy Springs, GA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Sandy Springs, GA

Average sunshine days in September - Sandy Springs, GA
  • Average sunshine days in September: 16 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is July (7.7 days).

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Average UV index in September
Sandy Springs, GA

Average UV index in September - Sandy Springs, GA
  • Average UV index in September: 5

The month with the highest UV index is August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Sandy Springs, GA

Average cloud cover in September - Sandy Springs, GA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Sandy Springs, GA

Average visibility in September - Sandy Springs, GA
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Sandy Springs, Georgia, USA

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