September weather forecast
Olanta, SC

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Weather in September

September, the first month of the autumn in Olanta, is also a moderately hot month, with an average temperature ranging between min 66.9°F (19.4°C) and max 83.8°F (28.8°C).

Temperature

Entering September, Olanta's average high-temperature reads a warm 83.8°F (28.8°C), indicating a close resemblance to the previous month's climate. During the nights in September, an average low-temperature of 66.9°F (19.4°C) is observed in Olanta.

Heat index

The heat index value for September is estimated at a tropical 93.2°F (34°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

May, August and September, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Olanta, South Carolina, in September, during 15.8 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. In Olanta, during the entire year, the rain falls for 170.2 days and collects up to 34.06" (865mm) of precipitation.

Snowfall

March through December are months without snowfall in Olanta.

Daylight

The average length of the day in September in Olanta is 12h and 22min.
On the first day of September in Olanta, sunrise is at 6:53 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:04 pm EDT.

Sunshine

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

UV index

In Olanta, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In September, the UV index of 6 transforms into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

How hot does it get in Olanta in September?

Olanta in September has an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 66.9°F (19.4°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is estimated at 93.2°F (34°C).

What is the most humid month in Olanta?

May, August and September, with an average relative humidity of 78%, are most humid months in Olanta.

What is the average humidity in September in Olanta?

In Olanta, South Carolina, the average relative humidity in September is 78%.

How much does it rain in Olanta in September?

In Olanta, South Carolina, in September, during 15.8 rainfall days, 3.07" (78mm) of precipitation is typically accumulated.

When it does not snow in Olanta?

In Olanta, snow does not fall in March through December.

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

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

When is the sunrise / sunset in September in Olanta?

On the first day of September in Olanta, sunrise is at 6:53 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:04 pm EDT.

How many hours of sunshine does Olanta have in September?

In September, the average sunshine duration in Olanta is 9.1h.

What is the UV index intensity in September in Olanta?

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

Average temperature in September - Olanta, SC
  • Average high temperature in September: 83.8°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (53.4°F).

  • Average low temperature in September: 66.9°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).

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Average pressure in September
Olanta, SC

Average pressure in September - Olanta, SC
  • Average pressure in September: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in September
Olanta, SC

Average wind speed in September - Olanta, SC
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in September
Olanta, SC

Average humidity in September - Olanta, SC
  • Average humidity in September: 78%

The months with the highest relative humidity are May, August and September (78%).
The months with the lowest relative humidity are January and November (73%).

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Average rainfall in September
Olanta, SC

Average rainfall in September - Olanta, SC
  • Average rainfall in September: 3.07"

The wettest month (with the highest rainfall) is August (4.41").
The driest month (with the least rainfall) is January (1.46").

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Average rainfall days in September
Olanta, SC

Average rainfall days in September - Olanta, SC
  • Average rainfall days in September: 15.8 days

The month with the highest number of rainy days is July (21.8 days).
The month with the least rainy days is November (8.9 days).

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Average snowfall in September
Olanta, SC

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

The month with the highest snowfall is February (0.39").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Olanta, SC

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

The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Olanta, 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: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in September
Olanta, SC

Average sunshine days in September - Olanta, SC
  • Average sunshine days in September: 12.3 days

The months with the most sunshine days are October and November (20.4 days).
The month with the least sunshine days is July (6.5 days).

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Average UV index in September
Olanta, SC

Average UV index in September - Olanta, 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, February and December (UV index 3).

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Average cloud cover in September
Olanta, SC

Average cloud cover in September - Olanta, SC
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in September
Olanta, SC

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

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