September weather forecast
Palmetto, FL

The first month of the autumn, September, is also a hot month in Palmetto, Florida, with temperature in the range of an average low of 77.4°F (25.2°C) and an average high of 86.9°F (30.5°C).

Temperature

The average high-temperature during September is a still tropical 86.9°F (30.5°C), almost matching the conditions of the preceding month. In September, the average low-temperature is a warm 77.4°F (25.2°C).

Heat index

Throughout September, the heat index is computed to be a torrid 100.4°F (38°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Heat index evaluations are typically in the context of light winds and shaded environments. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Palmetto, the average relative humidity in September is 75%.

Rainfall

In Palmetto, in September, it is raining for 23.5 days, with typically 4.61" (117mm) of accumulated precipitation. Throughout the year, there are 183.1 rainfall days, and 34.92" (887mm) of precipitation is accumulated.

Ocean temperature

In Palmetto, the average seawater temperature in September is 84.7°F (29.3°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.

Daylight

The average length of the day in September in Palmetto is 12h and 19min.
On the first day of the month, sunrise is at 7:09 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:17 pm EDT.

Sunshine

The average sunshine in September is 9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Note! Reflective surfaces like sand and water heighten the UV radiation levels.