September weather forecast
Gaines Crossroads, SC

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Weather in September

September, the first month of the autumn in Gaines Crossroads, is still a warm month, with temperature in the range of an average low of 65.1°F (18.4°C) and an average high of 84.9°F (29.4°C).

Temperature

As September arrives, Gaines Crossroads's weather displays a minor decrease in high-temperatures, transitioning from August's tropical 90.3°F (32.4°C) to a warm 84.9°F (29.4°C). Throughout September, Gaines Crossroads registers a consistent average low-temperature of 65.1°F (18.4°C).

Heat index

September's mean heat index is computed to be a hot 93.2°F (34°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.

Humidity

The average relative humidity in September is 72%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.5" (38mm) of precipitation.

Snowfall

April through December are months without snowfall in Gaines Crossroads.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 7:02 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:13 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 5 in September translates into the following instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.

Frequently asked questions

How hot is it in September?

In September, the average high-temperature and low-temperature are 84.9°F (29.4°C) and 65.1°F (18.4°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is computed to be 93.2°F (34°C).

What is the average humidity in September?

The average relative humidity in September is 72%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.5" (38mm) of precipitation.

How much does it rain in September?

In Gaines Crossroads, in September, during 11.4 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When it does not snow?

In Gaines Crossroads, snow does not fall in April through December.

How many hours of daylight does Gaines Crossroads have in September?

The average day length in September is 12h and 22min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:02 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:13 pm EDT.

How many hours of sunshine does Gaines Crossroads have in September?

In Gaines Crossroads, the average sunshine duration in September is 8.5h.

What is the UV index intensity in September?

In Gaines Crossroads, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium 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
Gaines Crossroads, SC

Average temperature in September - Gaines Crossroads, SC
  • Average high temperature in September: 84.9°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (51.8°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

Average pressure in September
Gaines Crossroads, SC

Average pressure in September - Gaines Crossroads, SC
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in September
Gaines Crossroads, SC

Average wind speed in September - Gaines Crossroads, SC
  • Average wind speed in September: 5.4mph

The windiest months (with the highest average wind speed) are February and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in September
Gaines Crossroads, SC

Average humidity in September - Gaines Crossroads, SC
  • Average humidity in September: 72%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

Average rainfall in September
Gaines Crossroads, SC

Average rainfall in September - Gaines Crossroads, SC
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in September
Gaines Crossroads, SC

Average rainfall days in September - Gaines Crossroads, SC
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is October (8.3 days).

Average snowfall in September
Gaines Crossroads, SC

Average snowfall in September - Gaines Crossroads, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Gaines Crossroads, SC

Average snowfall days in September - Gaines Crossroads, SC
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Gaines Crossroads, SC

Average daylight in September / Average sunshine in September - Gaines Crossroads, SC
  • 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 3min

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).

Average sunshine days in September
Gaines Crossroads, SC

Average sunshine days in September - Gaines Crossroads, SC
  • Average sunshine days in September: 17 days

The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (12.1 days).

Average UV index in September
Gaines Crossroads, SC

Average UV index in September - Gaines Crossroads, SC
  • Average UV index in September: 5

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

Average cloud cover in September
Gaines Crossroads, SC

Average cloud cover in September - Gaines Crossroads, SC
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are June and October (Cloud cover 29).

Average visibility in September
Gaines Crossroads, SC

Average visibility in September - Gaines Crossroads, 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).

Gaines Crossroads, South Carolina, USA

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