September weather forecast
Phoenix, SC

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Weather in September

The first month of the autumn, September, is still a warm month in Phoenix, South Carolina, with temperature in the range of an average low of 65.1°F (18.4°C) and an average high of 84.9°F (29.4°C).

Temperature

The beginning of September brings a minor change in the average high-temperature, shifting from a hot 90.3°F (32.4°C) in August to a warm 84.9°F (29.4°C). During September, the temperature in Phoenix, South Carolina, tends to dip to an average of 65.1°F (18.4°C) at night.

Heat index

During September, the heat index is estimated at a hot 93.2°F (34°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.5" (38mm) of precipitation.

Snowfall

April through December are months without snowfall in Phoenix.

Daylight

The average length of the day in September in Phoenix is 12h and 22min.
On the first day of September, sunrise is at 7:02 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:13 pm EDT.

Sunshine

In Phoenix, the average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

How hot is it in Phoenix in September?

The high-temperature in Phoenix, South Carolina, during September is 84.9°F (29.4°C) and the low-temperature is 65.1°F (18.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 93.2°F (34°C).

What is the average humidity in September in Phoenix?

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

What is the driest month in Phoenix?

September is the month with the least rainfall. Rain falls for 11.4 days and accumulates 1.5" (38mm) of precipitation.

How much does it rain in Phoenix in September?

In Phoenix, during September, the rain falls for 11.4 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Phoenix?

April through December are months without snowfall.

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

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

When is the sunrise / sunset in September in Phoenix?

On the first day of September in Phoenix, sunrise is at 7:02 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:13 pm EDT.

How many hours of sunshine does Phoenix have in September?

In September, the average sunshine duration in Phoenix, South Carolina, is 8.5h.

What is the UV index reading in September in Phoenix?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Phoenix, SC

Average temperature in September - Phoenix, SC
  • Average high temperature in September: 84.9°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (51.8°F).

  • Average low temperature in September: 65.1°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).

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Average pressure in September
Phoenix, SC

Average pressure in September - Phoenix, SC
  • Average pressure in September: 30.02"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
Phoenix, SC

Average wind speed in September - Phoenix, SC
  • Average wind speed in September: 5.4mph

The windiest months (with the highest average wind speed) are February and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in September
Phoenix, SC

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

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in September
Phoenix, SC

Average rainfall in September - Phoenix, SC
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days in September
Phoenix, SC

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

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is October (8.3 days).

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Average snowfall in September
Phoenix, SC

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

The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Phoenix, SC

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

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

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

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 3min

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 18min).

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Average sunshine days in September
Phoenix, SC

Average sunshine days in September - Phoenix, SC
  • Average sunshine days in September: 17 days

The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (12.1 days).

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Average UV index in September
Phoenix, SC

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

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

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Average cloud cover in September
Phoenix, SC

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

The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are June and October (Cloud cover 29).

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Average visibility in September
Phoenix, SC

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

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