September weather forecast
Lulu, FL

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

Temperature

September's commencement is accompanied by an average high-temperature of a still hot 87.8°F (31°C), diverging marginally from August's 91.2°F (32.9°C). During the month of September, Lulu experiences a steady low-temperature average of 70.9°F (21.6°C).

Heat index

The heat index value for September is estimated at a scorching 104°F (40°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The months with the highest humidity in Lulu are August, September and December, with an average relative humidity of 77%.

Rainfall

In Lulu, in September, during 19.9 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, in Lulu, there are 176.6 rainfall days, and 32.17" (817mm) of precipitation is accumulated.

Daylight

In September, the average length of the day 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

The average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 6 in September transforms into the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.