September weather forecast
Fivay Junction, FL

The first month of the autumn, September, is also a hot month in Fivay Junction, Florida, with an average temperature varying between 75.7°F (24.3°C) and 86.9°F (30.5°C).

Temperature

Fivay Junction's entry into September measures an average high-temperature of a still hot 86.9°F (30.5°C), closely parallel to the preceding month. The nighttime temperature dips to a moderately hot 75.7°F (24.3°C) on average during September.

Heat index

For September, the heat index is calculated to be a fiery hot 100.4°F (38°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In September, the average relative humidity in Fivay Junction is 76%.

Rainfall

In Fivay Junction, during September, the rain falls for 20.5 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, in Fivay Junction, Florida, there are 155.2 rainfall days, and 17.28" (439mm) of precipitation is accumulated.

Daylight

In September, the average length of the day in Fivay Junction, Florida, is 12h and 19min.
On the first day of the month, sunrise is at 7:08 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

Sunshine

In Fivay Junction, the average sunshine in September is 9.1h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Fivay Junction. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.