September weather forecast
Lulu, FL

The first month of the autumn, September, is still a hot month in Lulu, Florida, with an average temperature fluctuating between 70.9°F (21.6°C) and 87.8°F (31°C).

Temperature

The advent of September reveals an average high-temperature of a still tropical 87.8°F (31°C), showing minimal difference from the prior month. Throughout the month of September, the average temperature dips to an agreeable 70.9°F (21.6°C) at night.

Heat index

September's heat index is calculated to be a blisteringly hot 104°F (40°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. 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' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. 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 extremely significant for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

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

Rainfall

In Lulu, in September, it is raining for 19.9 days, with typically 3.07" (78mm) of accumulated precipitation. In Lulu, during the entire year, the rain falls for 176.6 days and collects up to 32.17" (817mm) of precipitation.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 7:07 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:16 pm EDT.

Sunshine

In Lulu, the average sunshine in September is 8.5h.

UV index

In Lulu, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. 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. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.