September weather forecast
Lake Forest Glen, GA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Lake Forest Glen, Georgia, with an average temperature ranging between max 83.7°F (28.7°C) and min 65.1°F (18.4°C).

Temperature

The commencement of September notes an average high-temperature of a moderately hot 83.7°F (28.7°C), exhibiting little difference from the previous month. Lake Forest Glen reports an average nighttime low-temperature of 65.1°F (18.4°C) in September.

Heat index

September's average heat index is appraised at a tropical 91.4°F (33°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. 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 are highly important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

In Lake Forest Glen, the average relative humidity in September is 73%.

Rainfall

In Lake Forest Glen, in September, during 13.7 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. In Lake Forest Glen, during the entire year, the rain falls for 179.7 days and collects up to 39.76" (1010mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September in Lake Forest Glen is 12h and 22min.
On the first day of September, sunrise is at 7:12 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:23 pm EDT.

Sunshine

In September, the average sunshine in Lake Forest Glen is 8.6h.

UV index

The months with the highest UV index in Lake Forest Glen are May through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 during September translates into the following guidance:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The average high-temperature, in September, in Lake Forest Glen, is 83.7°F (28.7°C), while the average low-temperature is 65.1°F (18.4°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is appraised at 91.4°F (33°C).

What is the average humidity in September?

In Lake Forest Glen, the average relative humidity in September is 73%.

How many days does it rain in September?

In September, the rain falls for 13.7 days. Throughout September, 2.76" (70mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September?

In Lake Forest Glen, the average day length in September is 12h and 22min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:12 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:23 pm EDT.

How many hours of sunshine does Lake Forest Glen have in September?

In September, the average sunshine duration is 8.6h.

What is the month with the highest UV index?

May through September, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe 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
Lake Forest Glen, GA

Average temperature in September - Lake Forest Glen, GA
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (51.6°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).

Average pressure in September
Lake Forest Glen, GA

Average pressure in September - Lake Forest Glen, GA
  • Average pressure in September: 30.02"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).

Average wind speed in September
Lake Forest Glen, GA

Average wind speed in September - Lake Forest Glen, GA
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in September
Lake Forest Glen, GA

Average humidity in September - Lake Forest Glen, GA
  • Average humidity in September: 73%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are October and November (72%).

Average rainfall in September
Lake Forest Glen, GA

Average rainfall in September - Lake Forest Glen, GA
  • Average rainfall in September: 2.76"

The wettest month (with the highest rainfall) is August (5.04").
The driest month (with the least rainfall) is October (2.13").

Average rainfall days in September
Lake Forest Glen, GA

Average rainfall days in September - Lake Forest Glen, GA
  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is October (9.5 days).

Average snowfall in September
Lake Forest Glen, GA

Average snowfall in September - Lake Forest Glen, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Lake Forest Glen, GA

Average snowfall days in September - Lake Forest Glen, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Lake Forest Glen, GA

Average daylight in September / Average sunshine in September - Lake Forest Glen, GA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 4min

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).

Average sunshine days in September
Lake Forest Glen, GA

Average sunshine days in September - Lake Forest Glen, GA
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (7 days).

Average UV index in September
Lake Forest Glen, GA

Average UV index in September - Lake Forest Glen, GA
  • Average UV index in September: 6

The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in September
Lake Forest Glen, GA

Average cloud cover in September - Lake Forest Glen, GA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 46).
The months with the least cloud cover are June and October (Cloud cover 31).

Average visibility in September
Lake Forest Glen, GA

Average visibility in September - Lake Forest Glen, 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).

Lake Forest Glen, Georgia, USA

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