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 85.8°F (29.9°C) and 80.4°F (26.9°C).

Temperature

The dawn of September sees an average high-temperature of a warm 85.8°F (29.9°C), subtly contrasting with August's 87.4°F (30.8°C). In September, a low-temperature average of 80.4°F (26.9°C) is characteristic of Lauderdale-by-the-Sea, marking a minor shift from daytime temperatures.

Heat index

In September, the heat index is evaluated at a very hot 96.8°F (36°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Lauderdale-by-the-Sea, 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, in Lauderdale-by-the-Sea, there are 168.2 rainfall days, and 14.17" (360mm) of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 18min.
On the first day of the month, sunrise is at 7:00 am and sunset at 7:39 pm. On the last day of September, in Lauderdale-by-the-Sea, Florida, sunrise is at 7:12 am and sunset at 7:07 pm EDT.

Sunshine

In September, the average sunshine 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 of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during September leads to these instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.