September weather forecast
Twin City, GA

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Weather in September

September, the first month of the autumn in Twin City, is still a warm month, with an average temperature fluctuating between 68°F (20°C) and 84.7°F (29.3°C).

Temperature

The advent of September observes an average high-temperature of a moderately hot 84.7°F (29.3°C), nearly identical to August's 89.2°F (31.8°C). In September, Twin City experiences a temperature dip to an average of 68°F (20°C) at night.

Heat index

Throughout September, the heat index is estimated at a fiery hot 95°F (35°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Twin City, the average relative humidity in September is 76%.

Rainfall

In September, in Twin City, the rain falls for 13.3 days. Throughout September, 0.94" (24mm) of precipitation is accumulated. Throughout the year, in Twin City, there are 132.8 rainfall days, and 15.24" (387mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September in Twin City is 12h and 22min.
On the first day of September, sunrise is at 7:03 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:14 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

How hot does it get in Twin City in September?

In September, the average high-temperature and low-temperature in Twin City are 84.7°F (29.3°C) and 68°F (20°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 95°F (35°C).

What is the average humidity in September in Twin City?

The average relative humidity in September is 76%.

How many days does it rain in September in Twin City?

In Twin City, in September, it is raining for 13.3 days, with typically 0.94" (24mm) of accumulated precipitation.

When it does not snow in Twin City?

April through November are months without snowfall in Twin City, Georgia.

What is the average length of the day in September in Twin City?

In September, the average day length in Twin City, Georgia, is 12h and 22min.

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

On the first day of September in Twin City, Georgia, sunrise is at 7:03 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:14 pm EDT.

How long on average sun shines in September in Twin City?

In September, the average sunshine duration is 8.6h.

How high is the UV index in September in Twin City?

In Twin City, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Twin City, GA

Average temperature in September - Twin City, GA
  • Average high temperature in September: 84.7°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in September: 68°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

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Average pressure in September
Twin City, GA

Average pressure in September - Twin City, GA
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

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Average wind speed in September
Twin City, GA

Average wind speed in September - Twin City, GA
  • Average wind speed in September: 6.2mph

The windiest months (with the highest average wind speed) are March and April (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in September
Twin City, GA

Average humidity in September - Twin City, GA
  • Average humidity in September: 76%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January and November (71%).

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Average rainfall in September
Twin City, GA

Average rainfall in September - Twin City, GA
  • Average rainfall in September: 0.94"

The wettest month (with the highest rainfall) is August (2.17").
The driest month (with the least rainfall) is November (0.63").

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Average rainfall days in September
Twin City, GA

Average rainfall days in September - Twin City, GA
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (5.6 days).

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Average snowfall days in September
Twin City, GA

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

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Twin 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 6min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in September
Twin City, GA

Average sunshine days in September - Twin City, GA
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is June (10.6 days).

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Average UV index in September
Twin City, GA

Average UV index in September - Twin City, GA
  • Average UV index in September: 6

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

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Average cloud cover in September
Twin City, GA

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

The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in September
Twin City, GA

Average visibility in September - Twin 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).

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Twin City, Georgia, USA

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