September weather forecast
Union City, GA

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Weather in September

September, the first month of the autumn in Union City, is still a warm month, with an average temperature varying between 83.8°F (28.8°C) and 65.3°F (18.5°C).

Temperature

September denotes a minimal variation in the average high-temperature to a moderately hot 83.8°F (28.8°C) from August's 88.7°F (31.5°C). Throughout the month of September, the nighttime temperature in Union City dips to an average of 65.3°F (18.5°C).

Heat index

The heat index value for September is appraised at a hot 91.4°F (33°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. 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 primarily vital for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

The average relative humidity in September is 72%.

Rainfall

In September, the rain falls for 13.1 days. Throughout September, 2.76" (70mm) of precipitation is accumulated. In Union City, during the entire year, the rain falls for 177.7 days and collects up to 40.16" (1020mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In Union City, Georgia, the average length of the day in September 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 Union City, Georgia, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index in Union City, Georgia, is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a regular UV index of 5 translates into these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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 Union City in September?

In Union City, in September, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 65.3°F (18.5°C). In September, the average heat index (a.k.a. 'felt air temperature', '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 Union City?

In September, the average relative humidity in Union City, Georgia, is 72%.

How much does it rain in Union City in September?

In September, the rain falls for 13.1 days. Throughout September, 2.76" (70mm) of precipitation is accumulated.

When it does not snow in Union City?

In Union City, snow does not fall in April through November.

How many hours of daylight does Union City have in September?

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

What time are sunrise and sunset in September in Union City?

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 long on average sun shines in September in Union City?

The average sunshine duration in September in Union City, Georgia, is 8.6h.

What is the UV index reading in September in Union City?

The average daily maximum UV index in September in Union City, Georgia, is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Union City, GA

Average temperature in September - Union City, GA
  • Average high temperature in September: 83.8°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.7°F).

  • Average low temperature in September: 65.3°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

Average pressure in September
Union City, GA

Average pressure in September - Union City, 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
Union City, GA

Average wind speed in September - Union City, GA
  • Average wind speed in September: 4.9mph

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
Union City, GA

Average humidity in September - Union City, GA
  • Average humidity in September: 72%

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

Average rainfall in September
Union City, GA

Average rainfall in September - Union City, GA
  • Average rainfall in September: 2.76"

The wettest month (with the highest rainfall) is August (4.8").
The driest month (with the least rainfall) is October (2.13").

Average rainfall days in September
Union City, GA

Average rainfall days in September - Union City, GA
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (9.5 days).

Average snowfall in September
Union City, GA

Average snowfall in September - Union City, GA
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Union City, GA

Average snowfall days in September - Union City, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Union City, GA

Average daylight in September / Average sunshine in September - Union City, 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 months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Union City, GA

Average sunshine days in September - Union City, GA
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in September
Union City, GA

Average UV index in September - Union City, GA
  • Average UV index in September: 5

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

Average cloud cover in September
Union City, GA

Average cloud cover in September - Union City, GA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 47).
The months with the least cloud cover are June and October (Cloud cover 31).

Average visibility in September
Union City, GA

Average visibility in September - Union City, 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).

Union City, Georgia, USA

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