September weather forecast
Bluffton, FL

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Weather in September

September, the first month of the autumn in Bluffton, is also a hot month, with an average temperature ranging between max 88.5°F (31.4°C) and min 73.8°F (23.2°C).

Temperature

Bluffton, Florida, records an average high-temperature of a still tropical 88.5°F (31.4°C) in September, maintaining a close correlation with August's 91.4°F (33°C). Throughout September, an average low-temperature of 73.8°F (23.2°C) is expected.

Heat index

The average heat index in September is evaluated at an extremely hot 105.8°F (41°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The months with the highest humidity in Bluffton are August and September, with an average relative humidity of 78%.

Rainfall

In Bluffton, Florida, in September, it is raining for 22.3 days, with typically 4.09" (104mm) of accumulated precipitation. Throughout the year, there are 191.3 rainfall days, and 34.45" (875mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Bluffton, Florida, the average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:04 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:12 pm EDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September in Bluffton is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In September, a regular UV index of 6 translates into these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

How hot does it get in Bluffton in September?

The high-temperature, in September, in Bluffton, is 88.5°F (31.4°C), while the low-temperature averages to 73.8°F (23.2°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is evaluated at 105.8°F (41°C).

What are the most humid months in Bluffton?

The months with the highest humidity are August and September, with an average relative humidity of 78%.

What is the average humidity in September in Bluffton?

In September, the average relative humidity in Bluffton, Florida, is 78%.

How much does it rain in Bluffton in September?

In Bluffton, in September, during 22.3 rainfall days, 4.09" (104mm) of precipitation is typically accumulated.

When it does not snow in Bluffton?

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

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

The average day length in September is 12h and 19min.

When are sunrise and sunset in September in Bluffton?

In September, on the first day of the month, sunrise is at 7:04 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:12 pm EDT.

How long on average sun shines in September in Bluffton?

The average sunshine duration in September in Bluffton, Florida, is 8.5h.

How high is the UV index in September in Bluffton?

The average daily maximum UV index in September in Bluffton is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Bluffton, FL

Average temperature in September - Bluffton, FL
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (67.1°F).

  • Average low temperature in September: 73.8°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).

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Average pressure in September
Bluffton, FL

Average pressure in September - Bluffton, FL
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

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Average wind speed in September
Bluffton, FL

Average wind speed in September - Bluffton, FL
  • Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are March and April (5.8mph).
The calmest month (with the lowest average wind speed) is July (4.2mph).

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Average humidity in September
Bluffton, FL

Average humidity in September - Bluffton, FL
  • Average humidity in September: 78%

The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is March (71%).

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Average rainfall in September
Bluffton, FL

Average rainfall in September - Bluffton, FL
  • Average rainfall in September: 4.09"

The wettest month (with the highest rainfall) is July (5.28").
The driest months (with the least rainfall) are March and November (1.26").

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Average rainfall days in September
Bluffton, FL

Average rainfall days in September - Bluffton, FL
  • Average rainfall days in September: 22.3 days

The month with the highest number of rainy days is August (26.3 days).
The month with the least rainy days is November (9.6 days).

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Average snowfall days in September
Bluffton, FL

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

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, 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, FL

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in September
Bluffton, FL

Average sunshine days in September - Bluffton, FL
  • Average sunshine days in September: 6.1 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is August (3 days).

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Average UV index in September
Bluffton, FL

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

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).

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Average cloud cover in September
Bluffton, FL

Average cloud cover in September - Bluffton, FL
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 29).

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Average visibility in September
Bluffton, FL

Average visibility in September - Bluffton, FL
  • 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, Florida, USA

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