September weather forecast
Middle River, FL

The first month of the autumn, September, is still a tropical month in Middle River, Florida, with temperature in the range of an average low of 79.7°F (26.5°C) and an average high of 86.4°F (30.2°C).

Temperature

Middle River measures an average high-temperature of a still tropical 86.4°F (30.2°C) in September, nearly consistent with the preceding month. Middle River's nocturnal readings in September exhibit minimal variation from the daytime temperatures, averaging at a moderately hot 79.7°F (26.5°C).

Heat index

For September, the heat index is appraised at a torrid 98.6°F (37°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Always consider that heat index estimations are for light winds and places in the shade. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', comes about by integrating the temperature readings with the humidity levels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The average relative humidity in September is 74%.

Rainfall

In September, the rain falls for 18.1 days. Throughout September, 0.63" (16mm) of precipitation is accumulated. Throughout the year, in Middle River, there are 125.3 rainfall days, and 8.35" (212mm) of precipitation is accumulated.

Daylight

In Middle River, the average length of the day in September is 12h and 18min.
On the first day of September, sunrise is at 7:01 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:08 pm EDT.

Sunshine

In September, the average sunshine is 9h.

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 unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.