September weather forecast
Sidell, FL

September, the first month of the autumn in Sidell, is still a hot month, with an average temperature fluctuating between 76.3°F (24.6°C) and 88°F (31.1°C).

Temperature

September's arrival shows an average high-temperature of a still hot 88°F (31.1°C), hardly different from the previous month. During September, the average low-temperature is a warm 76.3°F (24.6°C).

Heat index

September's heat index is evaluated at a blisteringly hot 104°F (40°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

September and December, with an average relative humidity of 77%, are the most humid months.

Rainfall

In Sidell, in September, it is raining for 20.6 days, with typically 2.6" (66mm) of accumulated precipitation. In Sidell, during the entire year, the rain falls for 165.2 days and collects up to 23.9" (607mm) 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 7:08 am and sunset at 7:48 pm. On the last day of September, in Sidell, sunrise is at 7:20 am and sunset at 7:15 pm EDT.

Sunshine

In Sidell, the average sunshine in September is 9.1h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Boost your sun resistance with garments that are densely woven yet spacious.