September weather forecast
Port Charlotte, FL

September sees a mild drop in temperature marking the gradual transition from summer to fall in Port Charlotte. While the end of summer heat may provide relief, residents should expect an increase in atmospheric pressure. Daylight begins to reduce and wind speed sees a slight uptick. In September, the city experiences rainfall measuring 3.03" (77mm), a significant drop as compared to August. The transition from September to October anticipates a further decrease in temperature and rainfall levels.

Temperature

The advent of September sees the average high-temperature at a still tropical 88.3°F (31.3°C), subtly shifted from August's 90.1°F (32.3°C). During September, Port Charlotte records an average temperature of 75.6°F (24.2°C) at night.

Heat index

The heat index value for September is appraised at a scorching 105.8°F (41°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The most humid month is September, with an average relative humidity of 78%.

Rainfall

In September, the rain falls for 22.5 days. Throughout September, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 176 rainfall days, and 26.26" (667mm) of precipitation is accumulated.

Daylight

In Port Charlotte, the average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:08 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:15 pm EDT.

Sunshine

The average sunshine in September is 9h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 7 during September, leads to the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.