September weather forecast
River Colony, GA

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Weather in September

September, the first month of the autumn in River Colony, is also a moderately hot month, with an average temperature varying between 64.9°F (18.3°C) and 83.7°F (28.7°C).

Temperature

River Colony's September weather shows a modest shift in high-temperatures, falling from August's hot 89.1°F (31.7°C) to a warm 83.7°F (28.7°C). An average minimum temperature of 64.9°F (18.3°C) is recorded during the month of September.

Heat index

The heat index value for September is appraised at a hot 89.6°F (32°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
Heat index readings emphasize conditions of light breezes and shaded spots. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

In September, the average relative humidity is 70%.

Rainfall

In River Colony, during September, the rain falls for 12.3 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 172.5 rainfall days, and 40.59" (1031mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September in River Colony is 12h and 22min.
On the first day of September in River Colony, 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 September, the average sunshine is 8.4h.

UV index

In September, the average daily maximum UV index in River Colony is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

How hot is it in River Colony in September?

The average high-temperature, in September, in River Colony, is 83.7°F (28.7°C), while the average low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is appraised at 89.6°F (32°C).

What is the average humidity in September in River Colony?

The average relative humidity in September is 70%.

How much does it rain in River Colony in September?

In River Colony, Georgia, in September, during 12.3 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow in River Colony?

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

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

The average day length in September in River Colony, Georgia, is 12h and 22min.

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

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

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

In September, the average sunshine duration in River Colony, Georgia, is 8.4h.

How high is the UV index in September in River Colony?

In River Colony, 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 Colony, GA

Average temperature in September - River Colony, GA
  • Average high temperature in September: 83.7°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 (49.6°F).

  • Average low temperature in September: 64.9°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 (34.3°F).

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Average pressure in September
River Colony, GA

Average pressure in September - River Colony, 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
River Colony, GA

Average wind speed in September - River Colony, 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 (4.6mph).

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Average humidity in September
River Colony, GA

Average humidity in September - River Colony, GA
  • Average humidity in September: 70%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in September
River Colony, GA

Average rainfall in September - River Colony, GA
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is August (5.04").
The driest month (with the least rainfall) is October (2.17").

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Average rainfall days in September
River Colony, GA

Average rainfall days in September - River Colony, GA
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is July (20 days).
The months with the least rainy days are October and November (9.7 days).

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Average snowfall in September
River Colony, GA

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

The month with the highest snowfall is January (0.79").
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
River Colony, GA

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

The months with the highest number of snowfall days are January and February (1.3 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
River Colony, GA

Average daylight in September / Average sunshine in September - River Colony, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
River Colony, GA

Average sunshine days in September - River Colony, GA
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (9 days).

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Average UV index in September
River Colony, GA

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

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in September
River Colony, GA

Average cloud cover in September - River Colony, 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 31).

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Average visibility in September
River Colony, GA

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

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