September weather forecast
Van Wyck, SC

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Weather in September

The first month of the autumn, September, is still a warm month in Van Wyck, South Carolina, with an average temperature ranging between min 64.9°F (18.3°C) and max 82.9°F (28.3°C).

Temperature

Van Wyck in September undergoes a slight reduction in the average high-temperature, shifting from August's hot 88.3°F (31.3°C) to a moderately hot 82.9°F (28.3°C). In September, Van Wyck encounters an average low-temperature of 64.9°F (18.3°C) during the night.

Heat index

Throughout September, the heat index is appraised at a tropical 89.6°F (32°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

The average relative humidity in September is 73%.

Rainfall

September is the month with the least rainfall. Rain falls for 9.6 days and accumulates 0.51" (13mm) of precipitation.

Snowfall

In Van Wyck, South Carolina, snow does not fall in March through December.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:56 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:08 pm EDT.

Sunshine

In Van Wyck, the average sunshine in September is 8.9h.

UV index

In Van Wyck, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 in September translates into these instructions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September in Van Wyck?

The high-temperature in Van Wyck during September is 82.9°F (28.3°C) and the low-temperature is 64.9°F (18.3°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is appraised at 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 73%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 9.6 days and accumulates 0.51" (13mm) of precipitation.

How many days does it rain in September in Van Wyck?

In September, the rain falls for 9.6 days. Throughout September, 0.51" (13mm) of precipitation is accumulated.

When it does not snow?

March through December are months without snowfall.

What is the average length of the day in September?

In Van Wyck, South Carolina, the average day length in September is 12h and 23min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:56 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:08 pm EDT.

How many hours of sunshine does Van Wyck have in September?

The average sunshine duration in September is 8.9h.

What is the UV index reading in September?

In September, the average daily maximum UV index in Van Wyck is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Van Wyck, SC

Average temperature in September - Van Wyck, SC
  • Average high temperature in September: 82.9°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (49.8°F).

  • Average low temperature in September: 64.9°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
Van Wyck, SC

Average pressure in September - Van Wyck, SC
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Van Wyck, SC

Average wind speed in September - Van Wyck, SC
  • Average wind speed in September: 5.5mph

The windiest months (with the highest average wind speed) are February and April (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Van Wyck, SC

Average humidity in September - Van Wyck, SC
  • Average humidity in September: 73%

The months with the highest relative humidity are May and December (75%).
The months with the lowest relative humidity are June, July and November (71%).

Average rainfall in September
Van Wyck, SC

Average rainfall in September - Van Wyck, SC
  • Average rainfall in September: 0.51"

The wettest month (with the highest rainfall) is August (1.61").
The driest month (with the least rainfall) is September (0.51").

Average rainfall days in September
Van Wyck, SC

Average rainfall days in September - Van Wyck, SC
  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (5.9 days).

Average snowfall in September
Van Wyck, SC

Average snowfall in September - Van Wyck, SC
  • Average snowfall in September: 0"

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

Average snowfall days in September
Van Wyck, SC

Average snowfall days in September - Van Wyck, SC
  • Average snowfall days in September: 0 days

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

Average daylight in September /
Average sunshine in September
Van Wyck, SC

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 5min

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
Van Wyck, SC

Average sunshine days in September - Van Wyck, SC
  • Average sunshine days in September: 18.3 days

The month with the most sunshine days is October (23.5 days).
The month with the least sunshine days is July (12.9 days).

Average UV index in September
Van Wyck, SC

Average UV index in September - Van Wyck, SC
  • Average UV index in September: 6

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

Average cloud cover in September
Van Wyck, SC

Average cloud cover in September - Van Wyck, SC
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in September
Van Wyck, SC

Average visibility in September - Van Wyck, 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).

Van Wyck, South Carolina, USA

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