September weather forecastKissimmee, FL

Weather in September

In September, Kissimmee experiences a mild drop in temperatures along with a noticeable decrease in rainfall. The temperatures range from 74.3°F (23.5°C) to 88.3°F (31.3°C), adding a tinge of comfort to the climate. September's long daylight hours and decreasing humidity values mark the prelude to the forthcoming more agreeable months. The mild weather conditions of this month make it a pleasant time to engage in outdoor activities. September, with its semi-warm temperatures, declining rainfall, and retention of lengthy sunlit hours, heralds the commencement of autumn's charm.

Temperature

The advent of September signifies a minor shift to an average high-temperature of a still tropical 88.3°F (31.3°C), aligning closely with August. An average low-temperature of 74.3°F (23.5°C) is observed during September nights.

Heat index

The heat index for September is computed to be an extremely hot 105.8°F (41°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. 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.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

July through September, with an average relative humidity of 78%, are the most humid months in Kissimmee.

Rainfall

In Kissimmee, in September, during 20.2 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Kissimmee, during the entire year, the rain falls for 176.9 days and collects up to 23.62" (600mm) of precipitation.

Daylight

The average length of the day in September in Kissimmee is 12h and 19min.
On the first day of the month, sunrise is at 7:04 am and sunset at 7:46 pm. On the last day of September, in Kissimmee, Florida, sunrise is at 7:18 am and sunset at 7:12 pm EDT.

Sunshine

In Kissimmee, Florida, the average sunshine in September is 8.7h.

UV index

The months with the highest UV index in Kissimmee, Florida, are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.