September weather forecast
Yellow Bluff, FL

The first month of the autumn, September, is still a hot month in Yellow Bluff, Florida, with an average temperature fluctuating between 88.7°F (31.5°C) and 73.4°F (23°C).

Temperature

The commencement of September introduces an average high-temperature of a still hot 88.7°F (31.5°C), closely mirroring the preceding month. During September, Yellow Bluff records a consistent average nighttime temperature of 73.4°F (23°C).

Heat index

September's average heat index is estimated at a blistering 107.6°F (42°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Note that heat index values are valued for light wind and location in the shade. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

August and September, with an average relative humidity of 78%, are the most humid months.

Rainfall

In September, the rain falls for 17.2 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. In Yellow Bluff, during the entire year, the rain falls for 159.8 days and collects up to 21.93" (557mm) of precipitation.

Daylight

In Yellow Bluff, Florida, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 7:04 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:13 pm EDT.

Sunshine

In Yellow Bluff, the average sunshine in September is 8.5h.

UV index

In Yellow Bluff, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.