September weather forecast
Mystic, GA

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Weather in September

September, the first month of the autumn in Mystic, is still a warm month, with temperature in the range of an average high of 84.6°F (29.2°C) and an average low of 68.5°F (20.3°C).

Temperature

Mystic registers an average high-temperature of a moderately hot 84.6°F (29.2°C) with the arrival of September, showing minor deviation from the preceding month. In the month of September, Mystic records a consistent average low-temperature of 68.5°F (20.3°C).

Heat index

The heat index for September is appraised at a very hot 95°F (35°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. 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. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Mystic, the average relative humidity in September is 77%.

Rainfall

In September, in Mystic, Georgia, the rain falls for 13.5 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. Throughout the year, in Mystic, there are 144.9 rainfall days, and 19.17" (487mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

In Mystic, the average length of the day in September is 12h and 21min.
On the first day of the month, sunrise is at 7:09 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:19 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In Mystic, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 6 in September translates into the following instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

Is it hot in Mystic during September?

During September, Mystic experiences an average high-temperature of 84.6°F (29.2°C) and a low-temperature of 68.5°F (20.3°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 95°F (35°C).

What is the average humidity in September in Mystic?

The average relative humidity in September in Mystic is 77%.

How many days does it rain in September in Mystic?

In Mystic, Georgia, in September, it is raining for 13.5 days, with typically 1.34" (34mm) of accumulated precipitation.

When it does not snow in Mystic?

In Mystic, Georgia, snow does not fall in February through December.

How many hours of daylight does Mystic have in September?

In Mystic, Georgia, the average day length in September is 12h and 21min.

What time are sunrise and sunset in September in Mystic?

In September, on the first day of the month, sunrise is at 7:09 am and sunset at 7:56 pm. On the last day of the month, in Mystic, Georgia, sunrise is at 7:26 am and sunset at 7:19 pm EDT.

How many hours of sunshine does Mystic have in September?

In September, the average sunshine duration in Mystic is 8.7h.

What is the UV index intensity in September in Mystic?

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

Average temperature in September - Mystic, GA
  • Average high temperature in September: 84.6°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (57.4°F).

  • Average low temperature in September: 68.5°F

The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (41.2°F).

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Average pressure in September
Mystic, GA

Average pressure in September - Mystic, GA
  • Average pressure in September: 29.99"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
Mystic, GA

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

The windiest months (with the highest average wind speed) are February and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in September
Mystic, GA

Average humidity in September - Mystic, GA
  • Average humidity in September: 77%

The month with the highest relative humidity is August (78%).
The months with the lowest relative humidity are January and November (72%).

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Average rainfall in September
Mystic, GA

Average rainfall in September - Mystic, GA
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is November (0.71").

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Average rainfall days in September
Mystic, GA

Average rainfall days in September - Mystic, GA
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is August (20.5 days).
The month with the least rainy days is November (5.5 days).

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Average snowfall in September
Mystic, GA

Average snowfall in September - Mystic, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Mystic, GA

Average snowfall days in September - Mystic, 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 February, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in September /
Average sunshine in September
Mystic, GA

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

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in September
Mystic, GA

Average sunshine days in September - Mystic, GA
  • Average sunshine days in September: 13.7 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (7.7 days).

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Average UV index in September
Mystic, GA

Average UV index in September - Mystic, GA
  • Average UV index in September: 6

The months with the highest UV index are May, 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
Mystic, GA

Average cloud cover in September - Mystic, GA
  • Average cloud cover in September: 32

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

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Average visibility in September
Mystic, GA

Average visibility in September - Mystic, 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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Mystic, Georgia, USA

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