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

The first month of the autumn, September, is still a warm month in Lauderdale-by-the-Sea, Florida, with an 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 practically the same as in August - a moderately hot 85.8°F (29.9°C). In September, in Lauderdale-by-the-Sea, the average low-temperature is 80.4°F (26.9°C).

Heat index

In September, the average heat index is evaluated at a torrid 96.8°F (36°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 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like metabolic differences, wind, pregnancy, 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. 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 surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in September is 74%.

Rainfall

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

Daylight

In September, the average length of the day in Lauderdale-by-the-Sea is 12h and 18min.
On the first day of the month, sunrise is at 7:00 am and sunset at 7:40 pm. On the last day of September, in Lauderdale-by-the-Sea, sunrise is at 7:12 am and sunset at 7:08 pm EDT.

Sunshine

The average sunshine in September is 9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Lauderdale-by-the-Sea. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 7 in September interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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 the 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.