September weather forecast
McGregor, FL

The first month of the autumn, September, is still a hot month in McGregor, Florida, with temperature in the range of an average high of 87.3°F (30.7°C) and an average low of 77.5°F (25.3°C).

Temperature

As August transitions into September, the average high-temperature rests at a still hot 87.3°F (30.7°C), maintaining a close resemblance to the previous month. An average low-temperature of 77.5°F (25.3°C) marks the month of September.

Heat index

Throughout September, the heat index is estimated at a torrid 102.2°F (39°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The months with the highest humidity are September and December, with an average relative humidity of 76%.

Rainfall

In McGregor, in September, it is raining for 21.2 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, there are 156.4 rainfall days, and 17.95" (456mm) of precipitation is accumulated.

Ocean temperature

In September, the average ocean temperature is 84.9°F (29.4°C).
Note: Water temperatures from 77°F (25°C) to 84.2°F (29°C) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

In McGregor, the average length of the day in September is 12h and 18min.
On the first day of September, sunrise is at 7:07 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:14 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. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Shield from overexposure. Defense against sun-related harm is required. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Warning! The Sun's UV rays intensify with reflections from sand and water.