September weather forecast
College Park, SC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in College Park, South Carolina, with an average temperature ranging between max 85.5°F (29.7°C) and min 69.3°F (20.7°C).

Temperature

College Park, South Carolina, experiences a transition to a warm 85.5°F (29.7°C) in average high-temperatures with the arrival of September, not greatly differing from August's 90.1°F (32.3°C). College Park usually reports an average low-temperature of 69.3°F (20.7°C) during the month of September.

Heat index

September's average heat index is appraised at a torrid 96.8°F (36°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are of high significance for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In September, the average relative humidity in College Park is 76%.

Rainfall

In College Park, during September, the rain falls for 11.2 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, there are 120.6 rainfall days, and 11.18" (284mm) of precipitation is accumulated.

Snowfall

In College Park, snow does not fall in March through December.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:55 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:05 pm EDT.

Sunshine

In College Park, the average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 6 suggests this advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

In September, in College Park, the average high-temperature is 85.5°F (29.7°C), and the average low-temperature is 69.3°F (20.7°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is appraised at 96.8°F (36°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How much does it rain in September?

In College Park, South Carolina, in September, it is raining for 11.2 days, with typically 1.1" (28mm) of accumulated precipitation.

When it does not snow?

In College Park, snow does not fall in March through December.

How many hours of daylight does College Park have in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:55 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:05 pm EDT.

How long on average sun shines in September?

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

How high is the UV index in September?

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to 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
College Park, SC

Average temperature in September - College Park, SC
  • Average high temperature in September: 85.5°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 69.3°F

The month with the highest average low temperature is July (74.7°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).

Average pressure in September
College Park, SC

Average pressure in September - College Park, 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 (29.97"Hg).

Average wind speed in September
College Park, SC

Average wind speed in September - College Park, SC
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in September
College Park, SC

Average humidity in September - College Park, 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 (72%).

Average rainfall in September
College Park, SC

Average rainfall in September - College Park, SC
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is August (2.09").
The driest month (with the least rainfall) is January (0.28").

Average rainfall days in September
College Park, SC

Average rainfall days in September - College Park, SC
  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is January (5.7 days).

Average snowfall in September
College Park, SC

Average snowfall in September - College Park, SC
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
College Park, SC

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

Average daylight in September /
Average sunshine in September
College Park, SC

Average daylight in September / Average sunshine in September - College Park, 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: 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 30min).

Average sunshine days in September
College Park, SC

Average sunshine days in September - College Park, SC
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is August (7.4 days).

Average UV index in September
College Park, SC

Average UV index in September - College Park, SC
  • 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).

Average cloud cover in September
College Park, SC

Average cloud cover in September - College Park, SC
  • Average cloud cover in September: 32

The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are July and October (Cloud cover 29).

Average visibility in September
College Park, SC

Average visibility in September - College Park, 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).

College Park, South Carolina, USA

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