September weather forecast
Old Marco Junction, FL

The first month of the autumn, September, is still a hot month in Old Marco Junction, Florida, with an average temperature fluctuating between 87.1°F (30.6°C) and 78.4°F (25.8°C).

Temperature

During September, Old Marco Junction observes a subtle ascent to a still tropical 87.1°F (30.6°C) from August's 88.3°F (31.3°C) in the average high-temperature. Old Marco Junction records a mild decrease in temperature during the nights of September, averaging a moderately hot 78.4°F (25.8°C).

Heat index

For September, the heat index is calculated to be a fiery hot 100.4°F (38°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In September, the average relative humidity in Old Marco Junction is 75%.

Rainfall

In September, in Old Marco Junction, the rain falls for 21.5 days. Throughout September, 2.4" (61mm) of precipitation is accumulated. In Old Marco Junction, during the entire year, the rain falls for 162.1 days and collects up to 21.69" (551mm) of precipitation.

Daylight

In September, the average length of the day in Old Marco Junction is 12h and 18min.
On the first day of the month, sunrise is at 7:07 am and sunset at 7:45 pm. On the last day of September, in Old Marco Junction, sunrise is at 7:19 am and sunset at 7:14 pm EDT.

Sunshine

In Old Marco Junction, the average sunshine in September is 9.2h.

UV index

The months with the highest UV index in Old Marco Junction are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.