September weather forecast
Rock Ridge, FL

The first month of the autumn, September, is still a hot month in Rock Ridge, Florida, with an average temperature ranging between max 88.2°F (31.2°C) and min 73.6°F (23.1°C).

Temperature

September's onset records an average high-temperature of a still hot 88.2°F (31.2°C), a near match to August's 90°F (32.2°C). September's average low-temperature reading in Rock Ridge settles at a warm 73.6°F (23.1°C).

Heat index

In September, the average heat index is estimated at a blistering 105.8°F (41°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The months with the highest humidity are July through September, with an average relative humidity of 79%.

Rainfall

In Rock Ridge, during September, the rain falls for 24.1 days and regularly aggregates up to 4.45" (113mm) of precipitation. In Rock Ridge, during the entire year, the rain falls for 197.3 days and collects up to 38.74" (984mm) of precipitation.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:06 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:14 pm EDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, a regular UV index of 7 translates into these guidelines:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.