September weather forecast
River Trace, GA

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Weather in September

September, the first month of the autumn in River Trace, is still a warm month, with an average temperature varying between 66°F (18.9°C) and 85.3°F (29.6°C).

Temperature

River Trace records an average high-temperature of a moderately hot 85.3°F (29.6°C) in September, closely mirroring the climate of the previous month. Throughout September, the nighttime temperature averages to an enjoyable 66°F (18.9°C).

Heat index

The heat index value during September is estimated at a very hot 95°F (35°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In River Trace, during September, the rain falls for 12.5 days and regularly aggregates up to 1.42" (36mm) of precipitation. In River Trace, during the entire year, the rain falls for 152.9 days and collects up to 22.2" (564mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

In River Trace, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 7:15 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:26 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 6 during September translates into the following guidance:
Fend off overexposure. Sun protection is vital. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in River Trace in September?

In River Trace, 85.3°F (29.6°C) is the average high-temperature and 66°F (18.9°C) is the average low-temperature during September. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in September is estimated at 95°F (35°C).

What is the average humidity in September?

In September, the average relative humidity is 73%.

How much does it rain in September?

In River Trace, in September, during 12.5 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

When it does not snow?

In River Trace, snow does not fall in March through December.

How many hours of daylight does River Trace have in September?

In River Trace, the average day length in September is 12h and 22min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:15 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:26 pm EDT.

How many hours of sunshine does River Trace have in September?

In River Trace, the average sunshine duration in September is 8.6h.

What is the UV index reading in September?

In River Trace, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
River Trace, GA

Average temperature in September - River Trace, GA
  • Average high temperature in September: 85.3°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (53.2°F).

  • Average low temperature in September: 66°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).

Average pressure in September
River Trace, GA

Average pressure in September - River Trace, GA
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in September
River Trace, GA

Average wind speed in September - River Trace, GA
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in September
River Trace, GA

Average humidity in September - River Trace, GA
  • Average humidity in September: 73%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
River Trace, GA

Average rainfall in September - River Trace, GA
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is October (1.3").

Average rainfall days in September
River Trace, GA

Average rainfall days in September - River Trace, GA
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in September
River Trace, GA

Average snowfall in September - River Trace, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
River Trace, GA

Average snowfall days in September - River Trace, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
River Trace, GA

Average daylight in September / Average sunshine in September - River Trace, 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 June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
River Trace, GA

Average sunshine days in September - River Trace, GA
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (8.1 days).

Average UV index in September
River Trace, GA

Average UV index in September - River Trace, GA
  • Average UV index in September: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in September
River Trace, GA

Average cloud cover in September - River Trace, GA
  • Average cloud cover in September: 31

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

Average visibility in September
River Trace, GA

Average visibility in September - River Trace, 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).

River Trace, Georgia, USA

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