September weather forecast
Lutz, FL

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

Temperature

September's onset sees an average high-temperature of a still tropical 88.7°F (31.5°C), exhibiting a slight fluctuation from the previous month. An average low-temperature of 74.8°F (23.8°C) is common during the nights of September.

Heat index

In September, the average heat index is estimated at an extremely hot 105.8°F (41°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

September and December, with an average relative humidity of 76%, are the most humid months in Lutz.

Rainfall

In September, the rain falls for 20 days. Throughout September, 2.72" (69mm) of precipitation is accumulated. Throughout the year, in Lutz, Florida, there are 162.9 rainfall days, and 23.7" (602mm) of precipitation is accumulated.

Daylight

In September, the average length of the day in Lutz is 12h and 19min.
On the first day of September in Lutz, sunrise is at 7:08 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

Sunshine

In September, the average sunshine in Lutz 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 risk from exposure to the Sun's UV rays for the average person.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.