September weather forecast
Bluffton, GA

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Weather in September

September, the first month of the autumn in Bluffton, is still a hot month, with an average temperature fluctuating between 86.2°F (30.1°C) and 69.1°F (20.6°C).

Temperature

September begins with an average high-temperature of a still tropical 86.2°F (30.1°C), reflecting close similarity to the preceding month. September's nights in Bluffton observe an average temperature of 69.1°F (20.6°C).

Heat index

September's average heat index is calculated to be a torrid 96.8°F (36°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Understand that the heat index values take into account shaded locations and mild 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 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in September is 74%.

Rainfall

In September, the rain falls for 15.5 days. Throughout September, 2.09" (53mm) of precipitation is accumulated. In Bluffton, during the entire year, the rain falls for 163.9 days and collects up to 31.73" (806mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 21min.
On the first day of the month, sunrise is at 7:15 am and sunset at 8:02 pm. On the last day of September, sunrise is at 7:33 am and sunset at 7:25 pm EDT.

Sunshine

In Bluffton, Georgia, the average sunshine in September is 8.8h.

UV index

In September, the average daily maximum UV index in Bluffton is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 6 transforms into the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

How hot is it in Bluffton in September?

The high-temperature, in September, in Bluffton, is 86.2°F (30.1°C), while the low-temperature averages to 69.1°F (20.6°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 96.8°F (36°C).

What is the average humidity in September in Bluffton?

The average relative humidity in September in Bluffton is 74%.

How many days does it rain in September in Bluffton?

In Bluffton, Georgia, in September, during 15.5 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When it does not snow in Bluffton?

In Bluffton, Georgia, snow does not fall in March through December.

How many hours of daylight does Bluffton have in September?

The average day length in September in Bluffton is 12h and 21min.

When are sunrise and sunset in September in Bluffton?

In September, on the first day of the month, sunrise is at 7:15 am and sunset at 8:02 pm. On the last day of the month, in Bluffton, sunrise is at 7:33 am and sunset at 7:25 pm EDT.

How many hours of sunshine does Bluffton have in September?

The average sunshine duration in September in Bluffton, Georgia, is 8.8h.

How high is the UV index in September in Bluffton?

The average daily maximum UV index in September in Bluffton, Georgia, is 6. A UV Index estimate of 6 to 7 represents a high 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
Bluffton, GA

Average temperature in September - Bluffton, GA
  • Average high temperature in September: 86.2°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 (57.7°F).

  • Average low temperature in September: 69.1°F

The month with the highest average low temperature is August (73.2°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

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Average pressure in September
Bluffton, GA

Average pressure in September - Bluffton, GA
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

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Average wind speed in September
Bluffton, GA

Average wind speed in September - Bluffton, GA
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are January, February and March (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in September
Bluffton, GA

Average humidity in September - Bluffton, GA
  • Average humidity in September: 74%

The months with the highest relative humidity are August and December (76%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Bluffton, GA

Average rainfall in September - Bluffton, GA
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is November (1.57").

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Average rainfall days in September
Bluffton, GA

Average rainfall days in September - Bluffton, GA
  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in September
Bluffton, GA

Average snowfall in September - Bluffton, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.16").
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
Bluffton, GA

Average snowfall days in September - Bluffton, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.2 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
Bluffton, GA

Average daylight in September / Average sunshine in September - Bluffton, GA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in September
Bluffton, GA

Average sunshine days in September - Bluffton, GA
  • Average sunshine days in September: 12.3 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is July (7.1 days).

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Average UV index in September
Bluffton, GA

Average UV index in September - Bluffton, GA
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in September
Bluffton, GA

Average cloud cover in September - Bluffton, GA
  • Average cloud cover in September: 29

The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 27).

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Average visibility in September
Bluffton, GA

Average visibility in September - Bluffton, GA
  • 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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Bluffton, Georgia, USA

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