September weather forecast
Sandy Springs, GA

Weather in September

The first month of the autumn, September, is also a moderately hot month in Sandy Springs, Georgia, with an average temperature ranging between max 84°F (28.9°C) and min 65.5°F (18.6°C).

Temperature

In September, the average high-temperature slightly decreases from a tropical 89.6°F (32°C) in August to a moderately hot 84°F (28.9°C). In September, in Sandy Springs, the average low-temperature is 65.5°F (18.6°C).

Heat index

The average heat index in September is estimated at a tropical 90.1°F (32.3°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, pregnancy, differences in body mass, height, and shape), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

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

Rainfall

In Sandy Springs, during September, the rain falls for 12.3 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, in Sandy Springs, Georgia, there are 180.4 rainfall days, and 42.91" (1090mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Sandy Springs.

Daylight

In Sandy Springs, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 7:11 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:23 pm EDT.

Sunshine

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

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Sandy Springs?

In September, 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. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in September is estimated at 90.1°F (32.3°C).

What is the average humidity in September in Sandy Springs?

The average relative humidity in September in Sandy Springs is 69%.

How much does it rain in Sandy Springs in September?

In Sandy Springs, Georgia, in September, it is raining for 12.3 days, with typically 2.56" (65mm) of accumulated precipitation.

When it does not snow in Sandy Springs?

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

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

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

When are sunrise and sunset in September in Sandy Springs?

On the first day of September in Sandy Springs, Georgia, sunrise is at 7:11 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:23 pm EDT.

How long on average sun shines in September in Sandy Springs?

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

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

In Sandy Springs, Georgia, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
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 22min

The month with the longest days is June (Average daylight: 14h and 23min).
The month with the shortest days is December (Average daylight: 9h and 56min).

  • Average sunshine in September: 8h and 30min

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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