September weather forecast
The Groves, SC

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Weather in September

September, the first month of the autumn in The Groves, is still a warm month, with an average temperature ranging between max 83.3°F (28.5°C) and min 73.6°F (23.1°C).

Temperature

The advent of September reveals an average high-temperature of a moderately hot 83.3°F (28.5°C), showing minimal difference from the prior month. The Groves's nighttime temperature during September is consistently averaged at 73.6°F (23.1°C).

Heat index

For most parts of September, the heat index is calculated to be a tropical 91.4°F (33°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

The average relative humidity in September in The Groves is 76%.

Rainfall

In The Groves, during September, the rain falls for 19.4 days and regularly aggregates up to 5.47" (139mm) of precipitation. Throughout the year, there are 182.9 rainfall days, and 44.69" (1135mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall in The Groves, South Carolina.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September in The Groves, sunrise is at 6:54 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:05 pm EDT.

Sunshine

In The Groves, South Carolina, the average sunshine in September is 9.2h.

UV index

In The Groves, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

How hot does it get in The Groves in September?

In September, the average high-temperature and low-temperature are 83.3°F (28.5°C) and 73.6°F (23.1°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is calculated to be 91.4°F (33°C).

What is the average humidity in September in The Groves?

In The Groves, the average relative humidity in September is 76%.

How many days does it rain in September in The Groves?

In September, in The Groves, South Carolina, the rain falls for 19.4 days. Throughout September, 5.47" (139mm) of precipitation is accumulated.

When it does not snow in The Groves?

March through December are months without snowfall in The Groves.

What is the average length of the day in September in The Groves?

In September, the average day length in The Groves, South Carolina, is 12h and 22min.

What time are sunrise and sunset in September in The Groves?

On the first day of September, sunrise is at 6:54 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:05 pm EDT.

How many hours of sunshine does The Groves have in September?

In September, the average sunshine duration in The Groves is 9.2h.

What is the UV index reading in September in The Groves?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
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
The Groves, SC

Average temperature in September - The Groves, SC
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (57.2°F).

  • Average low temperature in September: 73.6°F

The month with the highest average low temperature is July (77.9°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).

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Average pressure in September
The Groves, SC

Average pressure in September - The Groves, SC
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in September
The Groves, SC

Average wind speed in September - The Groves, SC
  • Average wind speed in September: 8.6mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

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Average humidity in September
The Groves, SC

Average humidity in September - The Groves, SC
  • Average humidity in September: 76%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January and March (73%).

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Average rainfall in September
The Groves, SC

Average rainfall in September - The Groves, SC
  • Average rainfall in September: 5.47"

The wettest month (with the highest rainfall) is August (8.03").
The driest month (with the least rainfall) is January (1.38").

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Average rainfall days in September
The Groves, SC

Average rainfall days in September - The Groves, SC
  • Average rainfall days in September: 19.4 days

The month with the highest number of rainy days is August (25.8 days).
The month with the least rainy days is November (8.6 days).

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Average snowfall days in September
The Groves, SC

Average snowfall days in September - The Groves, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are 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
The Groves, SC

Average daylight in September / Average sunshine in September - The Groves, SC
  • 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: 9h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in September
The Groves, SC

Average sunshine days in September - The Groves, SC
  • Average sunshine days in September: 8.1 days

The months with the most sunshine days are January and November (19.3 days).
The month with the least sunshine days is August (3 days).

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Average UV index in September
The Groves, SC

Average UV index in September - The Groves, SC
  • Average UV index in September: 6

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

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Average cloud cover in September
The Groves, SC

Average cloud cover in September - The Groves, SC
  • Average cloud cover in September: 29

The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 26).

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Average visibility in September
The Groves, SC

Average visibility in September - The Groves, SC
  • 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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The Groves, South Carolina, USA

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