September weather forecast
Valrico, FL

The first month of the autumn, September, is still a hot month in Valrico, Florida, with an average temperature ranging between max 88.7°F (31.5°C) and min 74.8°F (23.8°C).

Temperature

Transitioning into September, Valrico experiences an average high-temperature of a still hot 88.7°F (31.5°C), marking a minor shift from the preceding month. During September, Valrico consistently records a temperature low averaging a moderately hot 74.8°F (23.8°C).

Heat index

September's average heat index is evaluated at a scorching 105.8°F (41°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Note that heat index values are valued for light wind and location in the shade. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

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

Rainfall

In Valrico, in September, it is raining for 19.6 days, with typically 1.65" (42mm) of accumulated precipitation. In Valrico, Florida, during the entire year, the rain falls for 160.9 days and collects up to 16.77" (426mm) of precipitation.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:07 am and sunset at 7:49 pm. On the last day of September, in Valrico, sunrise is at 7:21 am and sunset at 7:15 pm EDT.

Sunshine

In Valrico, Florida, the average sunshine in September is 8.9h.

UV index

The months with the highest UV index in Valrico are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average UV index of 7 in September transforms into this advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.