September weather forecast
Sutherlands Still, FL

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Weather in September

The first month of the autumn, September, is still a tropical month in Sutherlands Still, Florida, with an average temperature ranging between min 73°F (22.8°C) and max 88.5°F (31.4°C).

Temperature

As September unfolds, the average high-temperature reaches a still tropical 88.5°F (31.4°C), hinting at a slight fluctuation from the previous month. In Sutherlands Still, in September, the average low-temperature is a pleasant 73°F (22.8°C).

Heat index

September's mean heat index is computed to be a blistering 105.8°F (41°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

August, September and December, with an average relative humidity of 77%, are the most humid months.

Rainfall

In Sutherlands Still, Florida, during September, the rain falls for 15.2 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, there are 138.3 rainfall days, and 12.76" (324mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

In Sutherlands Still, the average length of the day in September is 12h and 20min.
On the first day of September in Sutherlands Still, sunrise is at 7:04 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:12 pm EDT.

Sunshine

In Sutherlands Still, Florida, the average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 6 in September transforms into this advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

In Sutherlands Still, 88.5°F (31.4°C) is the average high-temperature and 73°F (22.8°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 105.8°F (41°C).

What is the most humid month?

August, September and December, with an average relative humidity of 77%, are most humid months.

What is the average humidity in September?

The average relative humidity in September is 77%.

How many days does it rain in September?

In Sutherlands Still, during September, the rain falls for 15.2 days and regularly aggregates up to 1.18" (30mm) of precipitation.

When it does not snow?

In Sutherlands Still, snow does not fall in February through December.

What is the average length of the day in September?

The average day length in September is 12h and 20min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:04 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:12 pm EDT.

How many hours of sunshine does Sutherlands Still have in September?

The average sunshine duration in September is 8.5h.

What is the UV index reading in September?

In Sutherlands Still, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from 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
Sutherlands Still, FL

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

The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (65.8°F).

  • Average low temperature in September: 73°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (48.2°F).

Average pressure in September
Sutherlands Still, FL

Average pressure in September - Sutherlands Still, 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).

Average wind speed in September
Sutherlands Still, FL

Average wind speed in September - Sutherlands Still, FL
  • Average wind speed in September: 4.6mph

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

Average humidity in September
Sutherlands Still, FL

Average humidity in September - Sutherlands Still, FL
  • Average humidity in September: 77%

The months with the highest relative humidity are August, September and December (77%).
The month with the lowest relative humidity is March (70%).

Average rainfall in September
Sutherlands Still, FL

Average rainfall in September - Sutherlands Still, FL
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is March (0.47").

Average rainfall days in September
Sutherlands Still, FL

Average rainfall days in September - Sutherlands Still, FL
  • Average rainfall days in September: 15.2 days

The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (6.7 days).

Average snowfall days in September
Sutherlands Still, FL

Average snowfall days in September - Sutherlands Still, 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).

Average daylight in September /
Average sunshine in September
Sutherlands Still, FL

Average daylight in September / Average sunshine in September - Sutherlands Still, 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 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in September
Sutherlands Still, FL

Average sunshine days in September - Sutherlands Still, FL
  • Average sunshine days in September: 12.1 days

The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is June (9.3 days).

Average UV index in September
Sutherlands Still, FL

Average UV index in September - Sutherlands Still, FL
  • 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 4).

Average cloud cover in September
Sutherlands Still, FL

Average cloud cover in September - Sutherlands Still, FL
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are May and July (Cloud cover 30).

Average visibility in September
Sutherlands Still, FL

Average visibility in September - Sutherlands Still, 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).

Sutherlands Still, Florida, USA

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