September weather forecast
Ulmerton, FL

The first month of the autumn, September, is still a hot month in Ulmerton, Florida, with an average temperature varying between 77.9°F (25.5°C) and 86.2°F (30.1°C).

Temperature

Ulmerton observes a minor difference in average high-temperatures between August's 87.6°F (30.9°C) and September's 86.2°F (30.1°C). Throughout September nights, Ulmerton records a consistent low-temperature averaging a moderately hot 77.9°F (25.5°C).

Heat index

September's mean heat index is estimated at a torrid 96.8°F (36°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. 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 are extremely significant 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.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Ulmerton, the average relative humidity in September is 74%.

Rainfall

In September, in Ulmerton, the rain falls for 20.7 days. Throughout September, 2.17" (55mm) of precipitation is accumulated. In Ulmerton, Florida, during the entire year, the rain falls for 149.9 days and collects up to 16.18" (411mm) of precipitation.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:10 am and sunset at 7:51 pm. On the last day of September, in Ulmerton, sunrise is at 7:23 am and sunset at 7:17 pm EDT.

Sunshine

In Ulmerton, the average sunshine in September is 9.1h.

UV index

The months with the highest UV index in Ulmerton are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.