September weather forecast
Port Charlotte, FL

September, the first month of the autumn in Port Charlotte, is also a hot month, with temperature in the range of an average low of 75.6°F (24.2°C) and an average high of 88.3°F (31.3°C).

Temperature

In Port Charlotte, the average high-temperature in September is relatively the same as in August - a still hot 88.3°F (31.3°C). In September, in Port Charlotte, the average low-temperature is 75.6°F (24.2°C).

Heat index

In September, the average heat index is evaluated at a scorching 105.8°F (41°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, differences in body mass, height, and shape, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

With an average relative humidity of 78%, September is the most humid month.

Rainfall

In Port Charlotte, during 22.5 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, there are 176 rainfall days, and 26.26" (667mm) of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September in Port Charlotte, sunrise is at 7:07 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:16 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 Port Charlotte. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 in September transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.