September weather forecast
McColsky, FL

The first month of the autumn, September, is still a tropical month in McColsky, Florida, with an average temperature varying between 70.9°F (21.6°C) and 87.8°F (31°C).

Temperature

McColsky sees the arrival of September with an average high-temperature of a still hot 87.8°F (31°C), indicating a subtle variation from August. McColsky's average low-temperature for the month of September records at an agreeable 70.9°F (21.6°C).

Heat index

Throughout September, the heat index is evaluated at a blistering 104°F (40°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

August, September and December, with an average relative humidity of 77%, are the most humid months.

Rainfall

In McColsky, during September, the rain falls for 19.9 days and regularly aggregates up to 3.07" (78mm) of precipitation. Throughout the year, there are 176.6 rainfall days, and 32.17" (817mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of September, sunrise is at 7:07 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:16 pm EDT.

Sunshine

In McColsky, the average sunshine in September is 8.5h.

UV index

In McColsky, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, a regular UV index of 6 translates into these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.