September weather forecast
Lake City, FL

The first month of the autumn, September, is also a hot month in Lake City, Florida, with an average temperature ranging between min 70.9°F (21.6°C) and max 87.8°F (31°C).

Temperature

As August turns into September, the average high-temperatures rest at a still tropical 87.8°F (31°C), showing a minor variation from the prior month. Throughout September, the temperature tends to fall to a consistent average low of 70.9°F (21.6°C).

Heat index

September's average heat index is estimated at a scorching 104°F (40°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
When referencing the heat index, its values are suitable for shady environments and light breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. 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

The months with the highest humidity in Lake City are August, September and December, with an average relative humidity of 77%.

Rainfall

In Lake City, during September, the rain falls for 19.9 days and regularly aggregates up to 3.07" (78mm) of precipitation. In Lake City, Florida, during the entire year, the rain falls for 176.6 days and collects up to 32.17" (817mm) of precipitation.

Daylight

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

Sunshine

In September, the average sunshine in Lake City is 8.5h.

UV index

The average daily maximum UV index in September in Lake City is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Resist extreme sun exposure. Guarding against solar damage is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.