September weather forecast and climate
Lauderdale-by-the-Sea, FL

Weather in September

September, the first month of the autumn, in Lauderdale-by-the-Sea, is also a moderately hot month, with average temperature varying between 80.4°F (26.9°C) and 85.8°F (29.9°C).

Temperature

In Lauderdale-by-the-Sea, the average high-temperature in September is almost the same as in August - a moderately hot 85.8°F (29.9°C). In September, the average low-temperature is 80.4°F (26.9°C).

Heat index

The average heat index is appraised at a very hot 96.4°F (35.8°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
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 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like differences in body mass, height, and shape, wind, metabolic differences, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Lauderdale-by-the-Sea, Florida, the average relative humidity in September is 74%.

Rainfall

In September, in Lauderdale-by-the-Sea, the rain falls for 22 days. Throughout September, 1.57" (40mm) of precipitation is accumulated. Throughout the year, there are 168.2 rainfall days, and 14.17" (360mm) of precipitation is accumulated.

Daylight

The average length of the day in September is 12.3h.

Sunshine

The average sunshine in September is 9h.

UV index

Months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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.
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FAQ

What is the temperature in September in Lauderdale-by-the-Sea?

The average high-temperature, in September, in Lauderdale-by-the-Sea, Florida, is 85.8°F (29.9°C), while the average low-temperature is 80.4°F (26.9°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 96.4°F (35.8°C).

What is the average humidity in September in Lauderdale-by-the-Sea?

In Lauderdale-by-the-Sea, the average relative humidity in September is 74%.

How many days does it rain in September in Lauderdale-by-the-Sea?

In Lauderdale-by-the-Sea, Florida, in September, it is raining for 22 days, with typically 1.57" (40mm) of accumulated precipitation.

How many hours of daylight does Lauderdale-by-the-Sea have in September?

The average length of the day in September in Lauderdale-by-the-Sea is 12.3h.

How long on average sun shines in September in Lauderdale-by-the-Sea?

In Lauderdale-by-the-Sea, the average sunshine in September is 9h.

What is the month with the highest UV index in Lauderdale-by-the-Sea?

Months with the highest UV index are May through September, with an average maximum UV index of 7.

How high is the UV index in September in Lauderdale-by-the-Sea?

In Lauderdale-by-the-Sea, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
Lauderdale-by-the-Sea, FL

Average temperature in September - Lauderdale-by-the-Sea, FL
  • Average high temperature in September: 29.9°C

The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (22.5°C).

  • Average low temperature in September: 26.9°C

The month with the highest average low temperature is August (27.7°C).
The coldest month (with the lowest average low temperature) is January (17.9°C).

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Average pressure in September
Lauderdale-by-the-Sea, FL

Average pressure in September - Lauderdale-by-the-Sea, FL
  • Average pressure in September: 1014.3mbar

The month with the highest atmospheric pressure is January (1019.7mbar).
The month with the lowest atmospheric pressure is September (1014.3mbar).

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Average wind speed in September
Lauderdale-by-the-Sea, FL

Average wind speed in September - Lauderdale-by-the-Sea, FL
  • Average wind speed in September: 13.3km/h

The windiest month (with the highest average wind speed) is March (18.2km/h).
The calmest month (with the lowest average wind speed) is July (12.5km/h).

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Average humidity in September
Lauderdale-by-the-Sea, FL

Average humidity in September - Lauderdale-by-the-Sea, FL
  • Average humidity in September: 74%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in September
Lauderdale-by-the-Sea, FL

Average rainfall in September - Lauderdale-by-the-Sea, FL
  • Average rainfall in September: 40mm

The wettest month (with the highest rainfall) is August (60mm).
The driest month (with the least rainfall) is January (10mm).

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Average rainfall days in September
Lauderdale-by-the-Sea, FL

Average rainfall days in September - Lauderdale-by-the-Sea, FL
  • Average rainfall days in September: 22 days

The month with the highest number of rainy days is September (22 days).
The month with the least rainy days is February (6.8 days).

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Average daylight in September /
Average sunshine in September
Lauderdale-by-the-Sea, FL

Average daylight in September / Average sunshine in September - Lauderdale-by-the-Sea, 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: 11h).
Months with the least sunshine are January and December (Average sunshine: 6.3).

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Average sunshine days in September
Lauderdale-by-the-Sea, FL

Average sunshine days in September - Lauderdale-by-the-Sea, FL
  • Average sunshine days in September: 5.3 days

The month with the most sunshine days is March (20.1 days).
The month with the least sunshine days is July (5 days).

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Average UV index in September
Lauderdale-by-the-Sea, FL

Average UV index in September - Lauderdale-by-the-Sea, FL
  • Average UV index in September: 7

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

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Average cloud cover in September
Lauderdale-by-the-Sea, FL

Average cloud cover in September - Lauderdale-by-the-Sea, FL
  • Average cloud cover in September: 30

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

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Average visibility in September
Lauderdale-by-the-Sea, FL

Average visibility in September - Lauderdale-by-the-Sea, FL
  • Average visibility in September: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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