September weather forecast
Lakeland, FL

The city of Lakeland witnesses the gradual farewell to summer during September. Major shifts in the weather pattern start to unfold with the decline in maximum temperatures, heralding the onset of cooler months. With the retreat of summer's peak, the rainfall also begins to subside, and a welcoming decline on the UV index takes place. Despite these changes, the daily daylight duration remains largely constant, enabling numerous activities. The transition into October's weather is smooth, with adjustments to the fluctuating conditions.

Temperature

In September, Lakeland experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 90°F (32.2°C) in August to a still tropical 88.2°F (31.2°C). Lakeland experiences a steady low-temperature of 73.4°F (23°C) throughout September.

Heat index

For most parts of September, the heat index is evaluated at a blistering 105.8°F (41°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

July through September, with an average relative humidity of 79%, are the most humid months.

Rainfall

In Lakeland, in September, it is raining for 14.3 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, there are 120.1 rainfall days, and 9.06" (230mm) of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:06 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:14 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 7 in September leads to these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.