September weather forecast and climate
Fort Lauderdale, FL

The outstanding Fort Lauderdale in Florida
The outstanding Fort Lauderdale in Florida

Weather in September

September, the first month of the autumn, in Fort Lauderdale, is still a warm month, with temperature in the range of an average low of 80.8°F (27.1°C) and an average high of 85.8°F (29.9°C).

Temperature

In Fort Lauderdale, the average high-temperature is practically the same as in August - a moderately hot 85.8°F (29.9°C). In Fort Lauderdale, in September, the average low-temperature is 80.8°F (27.1°C).

Heat index

In September, the average heat index is evaluated at a torrid 95.9°F (35.5°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, differences in body mass, height, and shape, wind, and pregnancy affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
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 humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In September, in Fort Lauderdale, Florida, the rain falls for 23.6 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. Throughout the year, in Fort Lauderdale, there are 179 rainfall days, and 15.55" (395mm) of precipitation is accumulated.

Ocean temperature

In Fort Lauderdale, in September, the average water temperature is 85.1°F (29.5°C).
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

The average length of the day in Fort Lauderdale is 12.3h.

Sunshine

In September, the average sunshine in Fort Lauderdale is 9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Fort Lauderdale. A UV Index estimate of 6 to 7 represents a high health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the temperature in September in Fort Lauderdale?

The average high-temperature, in September, in Fort Lauderdale, Florida, is 85.8°F (29.9°C), while the average low-temperature is 80.8°F (27.1°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 95.9°F (35.5°C).

What is the average humidity in September in Fort Lauderdale?

In Fort Lauderdale, Florida, the average relative humidity in September is 73%.

How much does it rain in Fort Lauderdale in September?

In Fort Lauderdale, during September, the rain falls for 23.6 days and regularly aggregates up to 1.73" (44mm) of precipitation.

How warm is the water in September in Fort Lauderdale?

In Fort Lauderdale, the average seawater temperature in September is 85.1°F (29.5°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Fort Lauderdale have in September?

In Fort Lauderdale, Florida, the average length of the day in September is 12.3h.

How long on average sun shines in September in Fort Lauderdale?

In September, the average sunshine is 9h.

What are the months with the highest UV index in Fort Lauderdale?

May through September, with an average maximum UV index of 7, are months with the highest UV index in Fort Lauderdale.

What is the UV index intensity in September in Fort Lauderdale?

The average daily maximum UV index in September in Fort Lauderdale, Florida, is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the UV radiation.

Average temperature in September
Fort Lauderdale, FL

Average temperature in September - Fort Lauderdale, FL
  • Average high temperature in September: 85.8°F

The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (73°F).

  • Average low temperature in September: 80.8°F

The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).

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Average pressure in September
Fort Lauderdale, FL

Average pressure in September - Fort Lauderdale, FL
  • Average pressure in September: 29.95"

The month with the highest atmospheric pressure is January (30.11").
Months with the lowest atmospheric pressure are September and October (29.95").

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Average wind speed in September
Fort Lauderdale, FL

Average wind speed in September - Fort Lauderdale, FL
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is March (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in September
Fort Lauderdale, FL

Average humidity in September - Fort Lauderdale, FL
  • Average humidity in September: 73%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (69%).

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Average rainfall in September
Fort Lauderdale, FL

Average rainfall in September - Fort Lauderdale, FL
  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is August (2.68").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in September
Fort Lauderdale, FL

Average rainfall days in September - Fort Lauderdale, FL
  • Average rainfall days in September: 23.6 days

The month with the highest number of rainy days is September (23.6 days).
The month with the least rainy days is February (8.3 days).

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Average sea temperature in September
Fort Lauderdale, FL

Average sea temperature in September - Fort Lauderdale, FL
  • Average sea temperature in September: 85.1°F

The best month for swimming (with the highest average sea temperature) is August (86.3°F).
The coldest months (with the lowest average sea temperature) are January and February (74.2°F).

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Average daylight in September /
Average sunshine in September
Fort Lauderdale, FL

Average daylight in September / Average sunshine in September - Fort Lauderdale, FL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.8h).
The month with the shortest days is December (Average daylight: 10.5h).

  • Average sunshine in September: 9h

The month with the most sunshine is July (Average sunshine: 10.9h).
Months with the least sunshine are January and December (Average sunshine: 6.3).

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Average sunshine days in September
Fort Lauderdale, FL

Average sunshine days in September - Fort Lauderdale, FL
  • Average sunshine days in September: 3.9 days

The month with the most sunshine days is January (17.4 days).
The month with the least sunshine days is September (3.9 days).

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Average UV index in September
Fort Lauderdale, FL

Average UV index in September - Fort Lauderdale, FL
  • Average UV index in September: 7

Months with the highest UV index are May, June, July, August and September (UV index 7).
Months with the lowest UV index are January and December (UV index 5).

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Average cloud cover in September
Fort Lauderdale, FL

Average cloud cover in September - Fort Lauderdale, FL
  • Average cloud cover in September: 30

The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 27).

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Average visibility in September
Fort Lauderdale, FL

Average visibility in September - Fort Lauderdale, FL
  • Average visibility in September: 6mi

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

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