September weather forecast
Hull, FL

September, the first month of the autumn in Hull, is still a hot month, with temperature in the range of an average low of 74.3°F (23.5°C) and an average high of 88.3°F (31.3°C).

Temperature

With the advent of September, Hull's high-temperatures adjust to a still tropical 88.3°F (31.3°C), closely aligning with the preceding month. Hull registers a consistent average low-temperature of 74.3°F (23.5°C) during September.

Heat index

September's average heat index is evaluated at a blistering 107.6°F (42°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

With an average relative humidity of 80%, September is the most humid month in Hull.

Rainfall

In Hull, in September, it is raining for 23.5 days, with typically 3.31" (84mm) of accumulated precipitation. Throughout the year, there are 187.3 rainfall days, and 28.62" (727mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Hull is 12h and 19min.
On the first day of the month, sunrise is at 7:07 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:14 pm EDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Hull, Florida. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.