September weather forecast and climate
Emerson Park, GA

The first month of the autumn, September, is still a hot month in Emerson Park, Georgia, with temperature in the range of an average low of 69.8°F (21°C) and an average high of 86.4°F (30.2°C).

Temperature

In Emerson Park, the average high-temperature is practically the same as in August - a still hot 86.4°F (30.2°C). In Emerson Park, in September, the average low-temperature is 69.8°F (21°C).

Heat index

In September, the average heat index is calculated to a torrid 99.3°F (37.4°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the 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 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, metabolic differences, 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.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in September is 77%.

Rainfall

In Emerson Park, during September, the rain falls for 12.9 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, there are 139 rainfall days, and 15.12" (384mm) of precipitation is accumulated.

Daylight

The average length of the day is 12.3h.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In Emerson Park, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.

What is the temperature in September in Emerson Park?

In Emerson Park, Georgia, in September, the average high-temperature is 86.4°F (30.2°C), and the average low-temperature is 69.8°F (21°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that calculates temperature value influenced by the moisture in the air, in September is appraised at 99.3°F (37.4°C).

What is the average humidity in September in Emerson Park?

The average relative humidity in September in Emerson Park is 77%.

How many days does it rain in September in Emerson Park?

In September, in Emerson Park, Georgia, the rain falls for 12.9 days. Throughout September, 1.1" (28mm) of precipitation is accumulated.

How many hours of daylight does Emerson Park have in September?

In Emerson Park, the average length of the day in September is 12.3h.

How many hours of sunshine does Emerson Park have in September?

In September, the average sunshine is 8.6h.

What is the UV index intensity in September in Emerson Park?

In September, the average daily maximum UV index in Emerson Park, Georgia, is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to the UV radiation.
Average temperature in September - Emerson Park, GA
  • Average high temperature in September: 86.4°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in September: 69.8°F

The month with the highest average low temperature is August (74.1°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

Average pressure in September - Emerson Park, GA
  • Average pressure in September: 29.98"

The month with the highest atmospheric pressure is January (30.15").
Months with the lowest atmospheric pressure are June, August and September (29.98").

Average wind speed in September - Emerson Park, GA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September - Emerson Park, GA
  • Average humidity in September: 77%

The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is January (71%).

Average rainfall in September - Emerson Park, GA
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is August (2.4").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in September - Emerson Park, GA
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is November (6.2 days).

Average daylight in September / Average sunshine in September - Emerson Park, GA
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 5.6h).

Average sunshine days in September - Emerson Park, GA
  • Average sunshine days in September: 12.2 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (7.8 days).

Average UV index in September - Emerson Park, GA
  • Average UV index in September: 6

Months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in September - Emerson Park, GA
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in September - Emerson Park, GA
  • Average visibility in September: 6mi

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