September weather forecast
River Oak, GA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in River Oak, Georgia, with an average temperature ranging between min 65.1°F (18.4°C) and max 84°F (28.9°C).

Temperature

The transition from August to September brings an average high-temperature of a moderately hot 84°F (28.9°C), barely different from August's 89.1°F (31.7°C). Throughout the month of September, the nighttime temperature in River Oak, Georgia, dips to an average of 65.1°F (18.4°C).

Heat index

The average heat index in September is computed to be a tropical 91.4°F (33°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. 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 are especially crucial for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

In September, the average relative humidity in River Oak is 71%.

Rainfall

In River Oak, Georgia, during September, the rain falls for 11.5 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, in River Oak, there are 158.9 rainfall days, and 27.32" (694mm) of precipitation is accumulated.

Snowfall

In River Oak, Georgia, snow does not fall in April through October.

Daylight

In River Oak, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 7:10 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:21 pm EDT.

Sunshine

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

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Undertake protective steps - Preventing sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in River Oak in September?

September temperatures vary between a high-temperature of 84°F (28.9°C) and a low-temperature of 65.1°F (18.4°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 91.4°F (33°C).

What is the average humidity in September in River Oak?

In River Oak, Georgia, the average relative humidity in September is 71%.

How many days does it rain in September in River Oak?

In River Oak, in September, during 11.5 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.

When it does not snow in River Oak?

April through October are months without snowfall in River Oak, Georgia.

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

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

When is the sunrise / sunset in September in River Oak?

On the first day of September, sunrise is at 7:10 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:21 pm EDT.

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

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

What is the UV index reading in September in River Oak?

In River Oak, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
River Oak, GA

Average temperature in September - River Oak, GA
  • Average high temperature in September: 84°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (49.8°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).

Average pressure in September
River Oak, GA

Average pressure in September - River Oak, 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).

Average wind speed in September
River Oak, GA

Average wind speed in September - River Oak, GA
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in September
River Oak, GA

Average humidity in September - River Oak, GA
  • Average humidity in September: 71%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

Average rainfall in September
River Oak, GA

Average rainfall in September - River Oak, GA
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is October (1.46").

Average rainfall days in September
River Oak, GA

Average rainfall days in September - River Oak, GA
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (18.8 days).
The months with the least rainy days are October and November (9.4 days).

Average snowfall in September
River Oak, GA

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

The month with the highest snowfall is February (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
River Oak, GA

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

The months with the highest number of snowfall days are January and February (0.8 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
River Oak, GA

Average daylight in September / Average sunshine in September - River Oak, GA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • 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
River Oak, GA

Average sunshine days in September - River Oak, GA
  • Average sunshine days in September: 17.4 days

The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in September
River Oak, GA

Average UV index in September - River Oak, GA
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
River Oak, GA

Average cloud cover in September - River Oak, GA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September
River Oak, GA

Average visibility in September - River Oak, 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 Oak, Georgia, USA

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