September weather forecast
Bunnell, FL

The first month of the autumn, September, is still a warm month in Bunnell, Florida, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 76.1°F (24.5°C).

Temperature

The arrival of September brings an average high-temperature of a warm 85.1°F (29.5°C), nearly identical to August's 87.8°F (31°C). The temperature during September sees a subtle transition from day to night, averaging a low of 76.1°F (24.5°C).

Heat index

The heat index value during September is calculated to be a very hot 95°F (35°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Given the heat index, its values are aligned with shaded sites and gentle winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 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.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In Bunnell, the average relative humidity in September is 77%.

Rainfall

In Bunnell, in September, it is raining for 21.5 days, with typically 4.76" (121mm) of accumulated precipitation. In Bunnell, during the entire year, the rain falls for 191.6 days and collects up to 35.2" (894mm) of precipitation.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 7:02 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:11 pm EDT.

Sunshine

In Bunnell, the average sunshine in September is 8.7h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.