September weather forecast
Boneo, SC

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Weather in September

The first month of the autumn, September, is still a warm month in Boneo, South Carolina, with an average temperature varying between 83.5°F (28.6°C) and 63.7°F (17.6°C).

Temperature

The transition into September involves a small decrease in the average high-temperature, dipping slightly from a tropical 89.2°F (31.8°C) in August to a moderately hot 83.5°F (28.6°C). In the month of September, Boneo experiences an average low-temperature of 63.7°F (17.6°C).

Heat index

For most parts of September, the heat index is evaluated at a tropical 89.6°F (32°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for 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 is 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 1.85" (47mm) of precipitation.

Snowfall

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

Daylight

In Boneo, the average length of the day in September is 12h and 23min.
On the first day of September in Boneo, sunrise is at 7:03 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:14 pm EDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index in Boneo is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 6 during September leads to these advisories:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. 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. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Boneo during September?

An average high-temperature, in September, in Boneo, is 83.5°F (28.6°C) and the average low-temperature is 63.7°F (17.6°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 89.6°F (32°C).

What is the average humidity in September in Boneo?

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

What is the driest month in Boneo?

September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 1.85" (47mm) of precipitation.

How many days does it rain in September in Boneo?

In September, the rain falls for 11.9 days. Throughout September, 1.85" (47mm) of precipitation is accumulated.

When it does not snow in Boneo?

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

How many hours of daylight does Boneo have in September?

The average day length in September in Boneo, South Carolina, is 12h and 23min.

When are sunrise and sunset in September in Boneo?

In September, on the first day of the month, sunrise is at 7:03 am and sunset at 7:55 pm. On the last day of the month, in Boneo, South Carolina, sunrise is at 7:23 am and sunset at 7:14 pm EDT.

How long on average sun shines in September in Boneo?

The average sunshine duration in September in Boneo is 8.4h.

How high is the UV index in September in Boneo?

In Boneo, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Boneo, SC

Average temperature in September - Boneo, SC
  • Average high temperature in September: 83.5°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

Average pressure in September
Boneo, SC

Average pressure in September - Boneo, 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 (29.98"Hg).

Average wind speed in September
Boneo, SC

Average wind speed in September - Boneo, SC
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in September
Boneo, SC

Average humidity in September - Boneo, 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%).

Average rainfall in September
Boneo, SC

Average rainfall in September - Boneo, SC
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is December (4.09").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September
Boneo, SC

Average rainfall days in September - Boneo, SC
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is October (8.8 days).

Average snowfall in September
Boneo, SC

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

The month with the highest snowfall is December (1.14").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Boneo, SC

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

The month with the highest number of snowfall days is January (1.3 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
Boneo, SC

Average daylight in September / Average sunshine in September - Boneo, 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 2min

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 12min).

Average sunshine days in September
Boneo, SC

Average sunshine days in September - Boneo, SC
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Boneo, SC

Average UV index in September - Boneo, SC
  • Average UV index in September: 6

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

Average cloud cover in September
Boneo, SC

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

The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 30).

Average visibility in September
Boneo, SC

Average visibility in September - Boneo, SC
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Boneo, South Carolina, USA

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