September weather forecast
Shell Point, SC

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Weather in September

The first month of the autumn, September, is still a warm month in Shell Point, South Carolina, with an average temperature fluctuating between 72.5°F (22.5°C) and 85.1°F (29.5°C).

Temperature

The beginning of September records an average high-temperature of a warm 85.1°F (29.5°C), marking a negligible difference from August's 88.9°F (31.6°C). During the nights in September, an average low-temperature of 72.5°F (22.5°C) is observed in Shell Point.

Heat index

September's mean heat index is calculated to be a sweltering 95°F (35°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In September, the average relative humidity in Shell Point is 75%.

Rainfall

In Shell Point, in September, it is raining for 14.9 days, with typically 2.28" (58mm) of accumulated precipitation. In Shell Point, during the entire year, the rain falls for 154.7 days and collects up to 23.11" (587mm) of precipitation.

Snowfall

March through November are months without snowfall in Shell Point.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:58 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:16 am and sunset at 7:08 pm EDT.

Sunshine

In Shell Point, the average sunshine in September is 8.7h.

UV index

In Shell Point, South Carolina, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A typical high UV index of 6 in September suggests the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

Is it hot in Shell Point during September?

In Shell Point, 85.1°F (29.5°C) is the average high-temperature and 72.5°F (22.5°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is calculated to be 95°F (35°C).

What is the average humidity in September in Shell Point?

In Shell Point, South Carolina, the average relative humidity in September is 75%.

How much does it rain in Shell Point in September?

In Shell Point, South Carolina, in September, it is raining for 14.9 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow in Shell Point?

March through November are months without snowfall in Shell Point.

What is the average length of the day in September in Shell Point?

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

What time are sunrise and sunset in September in Shell Point?

In September, on the first day of the month, sunrise is at 6:58 am and sunset at 7:47 pm. On the last day of the month, in Shell Point, sunrise is at 7:16 am and sunset at 7:08 pm EDT.

How many hours of sunshine does Shell Point have in September?

In September, the average sunshine duration in Shell Point, South Carolina, is 8.7h.

How high is the UV index in September in Shell Point?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
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
Shell Point, SC

Average temperature in September - Shell Point, SC
  • Average high temperature in September: 85.1°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (57.6°F).

  • Average low temperature in September: 72.5°F

The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (44.1°F).

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Average pressure in September
Shell Point, SC

Average pressure in September - Shell Point, SC
  • Average pressure in September: 29.99"Hg

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

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Average wind speed in September
Shell Point, SC

Average wind speed in September - Shell Point, SC
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in September
Shell Point, SC

Average humidity in September - Shell Point, SC
  • Average humidity in September: 75%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (71%).

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Average rainfall in September
Shell Point, SC

Average rainfall in September - Shell Point, SC
  • Average rainfall in September: 2.28"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is February (0.87").

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Average rainfall days in September
Shell Point, SC

Average rainfall days in September - Shell Point, SC
  • Average rainfall days in September: 14.9 days

The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is November (6.8 days).

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Average snowfall days in September
Shell Point, SC

Average snowfall days in September - Shell Point, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Shell Point, SC

Average daylight in September / Average sunshine in September - Shell Point, SC
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in September
Shell Point, SC

Average sunshine days in September - Shell Point, SC
  • Average sunshine days in September: 11.4 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is August (5.3 days).

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Average UV index in September
Shell Point, SC

Average UV index in September - Shell Point, 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
Shell Point, SC

Average cloud cover in September - Shell Point, SC
  • Average cloud cover in September: 29

The months with the most cloud cover are February and December (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 25).

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Average visibility in September
Shell Point, SC

Average visibility in September - Shell Point, 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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Shell Point, South Carolina, USA

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