September weather forecast
Lake Lucerne, FL

September, the first month of the autumn in Lake Lucerne, is still a hot month, with an average temperature varying between 79.9°F (26.6°C) and 86.9°F (30.5°C).

Temperature

September welcomes an average high-temperature of a still tropical 86.9°F (30.5°C), not much different from the preceding month. Lake Lucerne, during the nights of September, averages a temperature close to its daytime high, at a warm 79.9°F (26.6°C).

Heat index

September's heat index is appraised at a sweltering 98.6°F (37°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Remember that heat index calculations are made for conditions in the shade with light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Lake Lucerne, the average relative humidity in September is 72%.

Rainfall

In Lake Lucerne, in September, it is raining for 10.6 days, with typically 0.43" (11mm) of accumulated precipitation. In Lake Lucerne, during the entire year, the rain falls for 88.7 days and collects up to 6.14" (156mm) of precipitation.

Daylight

In Lake Lucerne, the average length of the day in September is 12h and 18min.
On the first day of September, sunrise is at 7:01 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:08 pm EDT.

Sunshine

In September, the average sunshine in Lake Lucerne is 9h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.