September weather forecast
Palmetto, FL

The first month of the autumn, September, is still a tropical month in Palmetto, Florida, with an average temperature ranging between min 77.4°F (25.2°C) and max 86.9°F (30.5°C).

Temperature

Palmetto's shift from August to September is accompanied by an average high-temperature of a still hot 86.9°F (30.5°C), a slight deviation from 88.5°F (31.4°C). Palmetto experiences a mean low-temperature of 77.4°F (25.2°C) during September.

Heat index

September's mean heat index is computed to be a fiery hot 100.4°F (38°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

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

Rainfall

In Palmetto, Florida, in September, during 23.5 rainfall days, 4.61" (117mm) of precipitation is typically accumulated. In Palmetto, during the entire year, the rain falls for 183.1 days and collects up to 34.92" (887mm) of precipitation.

Ocean temperature

In September, the average ocean temperature is 84.7°F (29.3°C).
Note: Water temperature ranging from 77°F (25°C) to 84.2°F (29°C) is recognized as warm and pleasant by all, making water activities comfortable and delightful for 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, in Palmetto, 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 in Palmetto, Florida. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, a regular UV index of 7 translates into these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Stay cautious! Sand and water reflections increase UV radiation potency.