September weather forecast
Riverland Terrace, SC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Riverland Terrace, South Carolina, with an average temperature varying between 83.5°F (28.6°C) and 73°F (22.8°C).

Temperature

The transition from August to September sees average high-temperatures adjusting to a moderately hot 83.5°F (28.6°C), from a not significantly different 87.4°F (30.8°C). In September, Riverland Terrace's temperature tends to fall to an average low of 73°F (22.8°C) during the night.

Heat index

September's heat index is calculated to be a hot 91.4°F (33°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

In Riverland Terrace, the average relative humidity in September is 75%.

Rainfall

In Riverland Terrace, South Carolina, in September, during 18.4 rainfall days, 5" (127mm) of precipitation is typically accumulated. In Riverland Terrace, South Carolina, during the entire year, the rain falls for 178.9 days and collects up to 41.93" (1065mm) of precipitation.

Snowfall

In Riverland Terrace, snow does not fall in February through November.

Daylight

In Riverland Terrace, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:55 am and sunset at 7:44 pm. On the last day of September, in Riverland Terrace, sunrise is at 7:13 am and sunset at 7:05 pm EDT.

Sunshine

The average sunshine in September in Riverland Terrace is 9.1h.

UV index

In September, the average daily maximum UV index in Riverland Terrace is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Riverland Terrace in September?

During September, Riverland Terrace experiences an average high-temperature of 83.5°F (28.6°C) and a low-temperature of 73°F (22.8°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 91.4°F (33°C).

What is the average humidity in September in Riverland Terrace?

In Riverland Terrace, South Carolina, the average relative humidity in September is 75%.

How many days does it rain in September in Riverland Terrace?

In Riverland Terrace, during September, the rain falls for 18.4 days and regularly aggregates up to 5" (127mm) of precipitation.

When it does not snow in Riverland Terrace?

February through November are months without snowfall in Riverland Terrace, South Carolina.

How many hours of daylight does Riverland Terrace have in September?

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

When is the sunrise / sunset in September in Riverland Terrace?

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, in Riverland Terrace, South Carolina, sunrise is at 7:13 am and sunset at 7:05 pm EDT.

How long on average sun shines in September in Riverland Terrace?

The average sunshine duration in September in Riverland Terrace is 9.1h.

How high is the UV index in September in Riverland Terrace?

In Riverland Terrace, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
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
Riverland Terrace, SC

Average temperature in September - Riverland Terrace, SC
  • Average high temperature in September: 83.5°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (57°F).

  • Average low temperature in September: 73°F

The month with the highest average low temperature is July (77.4°F).
The coldest month (with the lowest average low temperature) is January (44.4°F).

Average pressure in September
Riverland Terrace, SC

Average pressure in September - Riverland Terrace, 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).

Average wind speed in September
Riverland Terrace, SC

Average wind speed in September - Riverland Terrace, SC
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).

Average humidity in September
Riverland Terrace, SC

Average humidity in September - Riverland Terrace, SC
  • Average humidity in September: 75%

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

Average rainfall in September
Riverland Terrace, SC

Average rainfall in September - Riverland Terrace, SC
  • Average rainfall in September: 5"

The wettest month (with the highest rainfall) is August (7.13").
The driest month (with the least rainfall) is January (1.42").

Average rainfall days in September
Riverland Terrace, SC

Average rainfall days in September - Riverland Terrace, SC
  • Average rainfall days in September: 18.4 days

The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in September
Riverland Terrace, SC

Average snowfall in September - Riverland Terrace, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Riverland Terrace, SC

Average snowfall days in September - Riverland Terrace, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Riverland Terrace, SC

Average daylight in September / Average sunshine in September - Riverland Terrace, 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 month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in September
Riverland Terrace, SC

Average sunshine days in September - Riverland Terrace, SC
  • Average sunshine days in September: 8.5 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (3.8 days).

Average UV index in September
Riverland Terrace, SC

Average UV index in September - Riverland Terrace, 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).

Average cloud cover in September
Riverland Terrace, SC

Average cloud cover in September - Riverland Terrace, SC
  • Average cloud cover in September: 29

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

Average visibility in September
Riverland Terrace, SC

Average visibility in September - Riverland Terrace, 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).

Riverland Terrace, South Carolina, USA

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