September weather forecast
Spring Lake, FL

The first month of the autumn, September, is still a tropical month in Spring Lake, Florida, with an average temperature fluctuating between 88.2°F (31.2°C) and 72.9°F (22.7°C).

Temperature

With the advent of September, Spring Lake's high-temperatures adjust to a still hot 88.2°F (31.2°C), closely aligning with the preceding month. In September, Spring Lake experiences an average nighttime temperature of 72.9°F (22.7°C).

Heat index

In September, the average heat index is evaluated at a blistering 105.8°F (41°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The months with the highest humidity in Spring Lake are July through September, with an average relative humidity of 79%.

Rainfall

In Spring Lake, Florida, in September, during 15.9 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Spring Lake, during the entire year, the rain falls for 140.2 days and collects up to 15" (381mm) of precipitation.

Daylight

In September, the average length of the day in Spring Lake is 12h and 19min.
On the first day of September in Spring Lake, Florida, sunrise is at 7:07 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:15 pm EDT.

Sunshine

In Spring Lake, the average sunshine in September is 8.8h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 during September translates into the following guidance:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. 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. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.