September weather forecast
Tarpon Springs, FL

September, the first month of the autumn in Tarpon Springs, is still a tropical month, with an average temperature ranging between max 86.7°F and min 77.5°F.

Temperature

The arrival of September coincides with an average high-temperature of a still tropical 86.7°F, indicating a minimal shift from August's 88.3°F. Throughout September, Tarpon Springs encounters an average temperature drop to a moderately hot 77.5°F.

Heat index

September's mean heat index is computed to be a sweltering 98.6°F. Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

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

Rainfall

In Tarpon Springs, Florida, in September, during 15.7 rainfall days, 0.71" of precipitation is typically accumulated. Throughout the year, there are 120.5 rainfall days, and 9.45" of precipitation is accumulated.

Ocean temperature

In Tarpon Springs, in September, the average water temperature is 84.6°F.
Note: Water activities in temperatures ranging from 77°F to 84.2°F are pleasurable, without feeling uncomfortable even during extended periods.

Daylight

In Tarpon Springs, the average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:09 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:18 pm EDT.

Sunshine

In September, the average sunshine in Tarpon Springs, Florida, is 9.2h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Tarpon Springs. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Stay aware! UV radiation is magnified when reflecting off sand and water.