September weather forecast
Apalachicola, FL

September, the first month of the autumn in Apalachicola, is also a moderately hot month, with an average temperature fluctuating between 76.1°F (24.5°C) and 85.1°F (29.5°C).

Temperature

With the onset of September, a modest change to a warm 85.1°F (29.5°C) from August's 87.4°F (30.8°C) is noted in high-temperature. Apalachicola's nighttime temperatures in September display a slight drop from daytime highs, averaging to a still moderately hot 76.1°F (24.5°C).

Heat index

The heat index value during September is appraised at a very hot 95°F (35°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Records show heat index calculations are tailored for shaded regions and mild winds. 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 'feels like' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Apalachicola, the average relative humidity in September is 75%.

Rainfall

In Apalachicola, in September, during 20 rainfall days, 3.58" (91mm) of precipitation is typically accumulated. In Apalachicola, during the entire year, the rain falls for 171.9 days and collects up to 36.81" (935mm) of precipitation.

Ocean temperature

In Apalachicola, the average seawater temperature in September is 83.5°F (28.6°C).
Note: Surface water temperatures between 77°F (25°C) and 84.2°F (29°C) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of September in Apalachicola, sunrise is at 7:17 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:26 pm EDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

In Apalachicola, 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 unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 6 in September translates into this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Attention! The reflection of both water and sand can increase the intensity of UV rays.