September weather forecast
Mayo, SC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Mayo, South Carolina, with an average temperature varying between 83.1°F (28.4°C) and 62.2°F (16.8°C).

Temperature

Mayo observes a small decrease in the average high-temperature with the arrival of September, falling from August's hot 89.2°F (31.8°C) to a warm 83.1°F (28.4°C). The average temperature during September nights in Mayo is registered at a comfortable 62.2°F (16.8°C).

Heat index

September's average heat index is calculated to be a tropical 89.6°F (32°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

The average relative humidity in September in Mayo, South Carolina, is 72%.

Rainfall

September is the month with the least rainfall in Mayo. Rain falls for 11.4 days and accumulates 1.46" (37mm) of precipitation.

Snowfall

In Mayo, snow does not fall in April through October.

Daylight

The average length of the day in September in Mayo, South Carolina, is 12h and 23min.
On the first day of September in Mayo, sunrise is at 7:00 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:12 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In September, the average daily maximum UV index in Mayo is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the UV index of 5 transforms into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

How hot does it get in Mayo in September?

The high-temperature, in September, in Mayo, records 83.1°F (28.4°C), while the low-temperature is 62.2°F (16.8°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 89.6°F (32°C).

What is the average humidity in September in Mayo?

In September, the average relative humidity in Mayo is 72%.

What is the driest month in Mayo?

The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.46" (37mm) of precipitation.

How much does it rain in Mayo in September?

In Mayo, in September, during 11.4 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When it does not snow in Mayo?

In Mayo, South Carolina, snow does not fall in April through October.

What is the average length of the day in September in Mayo?

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

What time are sunrise and sunset in September in Mayo?

In September, on the first day of the month, sunrise is at 7:00 am and sunset at 7:53 pm. On the last day of the month, in Mayo, sunrise is at 7:22 am and sunset at 7:12 pm EDT.

How long on average sun shines in September in Mayo?

The average sunshine duration in September in Mayo, South Carolina, is 8.5h.

How high is the UV index in September in Mayo?

In Mayo, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Mayo, SC

Average temperature in September - Mayo, SC
  • Average high temperature in September: 83.1°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (48.4°F).

  • Average low temperature in September: 62.2°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

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Average pressure in September
Mayo, SC

Average pressure in September - Mayo, SC
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in September
Mayo, SC

Average wind speed in September - Mayo, SC
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in September
Mayo, SC

Average humidity in September - Mayo, SC
  • Average humidity in September: 72%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (68%).

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Average rainfall in September
Mayo, SC

Average rainfall in September - Mayo, SC
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.46").

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Average rainfall days in September
Mayo, SC

Average rainfall days in September - Mayo, SC
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in September
Mayo, SC

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

The month with the highest snowfall is December (2.44").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Mayo, SC

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

The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Mayo, SC

Average daylight in September / Average sunshine in September - Mayo, 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 48min).

  • Average sunshine in September: 8h and 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in September
Mayo, SC

Average sunshine days in September - Mayo, SC
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in September
Mayo, SC

Average UV index in September - Mayo, SC
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in September
Mayo, SC

Average cloud cover in September - Mayo, SC
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 28).

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Average visibility in September
Mayo, SC

Average visibility in September - Mayo, 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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Mayo, South Carolina, USA

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