September weather forecast
Poyner, FL

September, the first month of the autumn in Poyner, is still a tropical month, with temperature in the range of an average high of 88.2°F (31.2°C) and an average low of 73.6°F (23.1°C).

Temperature

September's arrival registers an average high-temperature of a still tropical 88.2°F (31.2°C), closely aligning with the temperature of the previous month. September nights are marked by an average temperature drop to a warm 73.6°F (23.1°C).

Heat index

In September, the heat index is evaluated at a blisteringly hot 105.8°F (41°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Data suggests that the heat index is set for environments in shade and with a light wind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

July through September, with an average relative humidity of 79%, are the most humid months.

Rainfall

In September, the rain falls for 24.1 days. Throughout September, 4.45" (113mm) of precipitation is accumulated. In Poyner, during the entire year, the rain falls for 197.3 days and collects up to 38.74" (984mm) of precipitation.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:14 pm EDT.

Sunshine

In Poyner, the average sunshine in September is 8.8h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.