September weather forecast
Limerick, SC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Limerick, South Carolina, with temperature in the range of an average low of 69.8°F (21°C) and an average high of 84.2°F (29°C).

Temperature

The onset of September marks an average high-temperature of a warm 84.2°F (29°C), hardly differing from August's 88.7°F (31.5°C). During September nights, Limerick records an average temperature of 69.8°F (21°C).

Heat index

During September, the heat index is calculated to be a tropical 93.2°F (34°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Heat index determinations are made taking into account the shade and light air movements. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in September is 77%.

Rainfall

In Limerick, during September, the rain falls for 17.5 days and regularly aggregates up to 4.13" (105mm) of precipitation. Throughout the year, there are 179.5 rainfall days, and 40.79" (1036mm) of precipitation is accumulated.

Snowfall

In Limerick, snow does not fall in March through November.

Daylight

In Limerick, South Carolina, the average length of the day in September is 12h and 22min.
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 7:04 pm EDT.

Sunshine

In Limerick, the average sunshine in September is 9.1h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

September temperatures vary between a high-temperature of 84.2°F (29°C) and a low-temperature of 69.8°F (21°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in September is calculated to be 93.2°F (34°C).

What is the average humidity in September?

In September, the average relative humidity is 77%.

How much does it rain in September?

In Limerick, in September, it is raining for 17.5 days, with typically 4.13" (105mm) of accumulated precipitation.

When it does not snow?

In Limerick, snow does not fall in March through November.

What is the average length of the day 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 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 7:04 pm EDT.

How long on average sun shines in September?

In Limerick, South Carolina, the average sunshine duration in September is 9.1h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high hazard to health from 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
Limerick, SC

Average temperature in September - Limerick, SC
  • Average high temperature in September: 84.2°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (55.8°F).

  • Average low temperature in September: 69.8°F

The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).

Average pressure in September
Limerick, SC

Average pressure in September - Limerick, 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
Limerick, SC

Average wind speed in September - Limerick, SC
  • Average wind speed in September: 6.4mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in September
Limerick, SC

Average humidity in September - Limerick, SC
  • Average humidity in September: 77%

The months with the highest relative humidity are August and December (78%).
The months with the lowest relative humidity are January and March (74%).

Average rainfall in September
Limerick, SC

Average rainfall in September - Limerick, SC
  • Average rainfall in September: 4.13"

The wettest month (with the highest rainfall) is August (6.46").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in September
Limerick, SC

Average rainfall days in September - Limerick, SC
  • Average rainfall days in September: 17.5 days

The months with the highest number of rainy days are July and August (23.2 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in September
Limerick, SC

Average snowfall in September - Limerick, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Limerick, SC

Average snowfall days in September - Limerick, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (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
Limerick, SC

Average daylight in September / Average sunshine in September - Limerick, 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 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in September
Limerick, SC

Average sunshine days in September - Limerick, SC
  • Average sunshine days in September: 10 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (5.5 days).

Average UV index in September
Limerick, SC

Average UV index in September - Limerick, SC
  • Average UV index in September: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in September
Limerick, SC

Average cloud cover in September - Limerick, SC
  • Average cloud cover in September: 29

The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in September
Limerick, SC

Average visibility in September - Limerick, 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).

Limerick, South Carolina, USA

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