September weather forecast
Thonotosassa, FL

The first month of the autumn, September, is also a hot month in Thonotosassa, Florida, with an average temperature fluctuating between 74.8°F (23.8°C) and 88.7°F (31.5°C).

Temperature

Thonotosassa indicates an average high-temperature of a still hot 88.7°F (31.5°C) in September, showing minor variation from August's 90.3°F (32.4°C). September in Thonotosassa, Florida, generally records an average low-temperature of 74.8°F (23.8°C).

Heat index

Throughout September, the heat index is computed to be a blistering 105.8°F (41°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

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

Rainfall

In September, in Thonotosassa, the rain falls for 21 days. Throughout September, 3.23" (82mm) of precipitation is accumulated. Throughout the year, there are 172.9 rainfall days, and 27.24" (692mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Thonotosassa is 12h and 19min.
On the first day of the month, sunrise is at 7:08 am and sunset at 7:49 pm. On the last day of September, in Thonotosassa, sunrise is at 7:21 am and sunset at 7:15 pm EDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.