September weather forecast
Lehigh Acres, FL

The first month of the autumn, September, is also a hot month in Lehigh Acres, Florida, with an average temperature fluctuating between 76.6°F (24.8°C) and 87.6°F (30.9°C).

Temperature

Lehigh Acres notes an average high-temperature of a still tropical 87.6°F (30.9°C) in September, hardly diverging from August. Lehigh Acres, in September, observes a steady average low-temperature of 76.6°F (24.8°C).

Heat index

For most parts of September, the heat index is estimated at a blisteringly hot 104°F (40°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The most humid month is September, with an average relative humidity of 77%.

Rainfall

In Lehigh Acres, during September, the rain falls for 23.5 days and regularly aggregates up to 3.43" (87mm) of precipitation. Throughout the year, in Lehigh Acres, there are 170 rainfall days, and 23.82" (605mm) of precipitation is accumulated.

Daylight

In Lehigh Acres, the average length of the day in September is 12h and 18min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:46 pm. On the last day of September, in Lehigh Acres, sunrise is at 7:18 am and sunset at 7:13 pm EDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Lehigh Acres. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 7 in September translates into these instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. 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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.