September weather forecast
Tallahassee, FL

September in Tallahassee ushers in a respite from the relentless summer heat, as temperatures start to recede. The city witnesses a decrease in rainfall, with a total of 3.62" (92mm) spread across approximately 20 days. Despite the decrease in temperature to a high of 87.3°F (30.7°C), the days remain fairly warm, offering a comforting balance to the residents. September gradually transitions the weather into the milder and more enjoyable autumn season. This month serves as a period of transformation, where the summer's energetic vibes start to wind down, paving the way for the tranquil calm of fall.

Temperature

With the start of September, Tallahassee measures an average high-temperature of a still hot 87.3°F (30.7°C), not significantly differing from August's 90.9°F (32.7°C). In Tallahassee, September nights witness a steady temperature drop to a pleasant 70.7°F (21.5°C).

Heat index

Throughout September, the heat index is calculated to be a torrid 102.2°F (39°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Tallahassee, the average relative humidity in September is 77%.

Rainfall

In September, the rain falls for 19.7 days. Throughout September, 3.62" (92mm) of precipitation is accumulated. In Tallahassee, during the entire year, the rain falls for 186.6 days and collects up to 37.68" (957mm) of precipitation.

Snowfall

In Tallahassee, snow does not fall in March through December.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of September, sunrise is at 7:14 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:23 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A typical high UV index of 6 in September suggests the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. 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. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.