September weather forecast
Sandy Springs, GA

Weather in September

The first month of the autumn, September, is still a warm month in Sandy Springs, Georgia, with an average temperature varying between 65.5°F (18.6°C) and 84°F (28.9°C).

Temperature

In September, the average high-temperature marginally drops from a tropical 89.6°F (32°C) in August to a warm 84°F (28.9°C). In September, the average low-temperature is 65.5°F (18.6°C).

Heat index

In September, the average heat index is estimated at a tropical 89.6°F (32°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, metabolic differences, clothing, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

In September, the rain falls for 12.3 days. Throughout September, 2.56" (65mm) of precipitation is accumulated. In Sandy Springs, during the entire year, the rain falls for 180.4 days and collects up to 42.91" (1090mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September in Sandy Springs, Georgia, 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

The average sunshine in September in Sandy Springs is 8.5h.

UV index

In Sandy Springs, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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?

The average high-temperature, in September, is 84°F (28.9°C), while the average low-temperature is 65.5°F (18.6°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in September is estimated at 89.6°F (32°C).

What is the average humidity in September in Sandy Springs?

In September, the average relative humidity 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.

What is the average length of the day in September in Sandy Springs?

The average day length in September 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?

The average sunshine duration in September in Sandy Springs is 8.5h.

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

The average daily maximum UV index in September in Sandy Springs, Georgia, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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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