September weather forecast
Tarrytown, FL

September, the first month of the autumn in Tarrytown, is still a tropical month, with an average temperature varying between 72.7°F (22.6°C) and 88.2°F (31.2°C).

Temperature

During September, Tarrytown observes a subtle ascent to a still tropical 88.2°F (31.2°C) from August's 90.1°F (32.3°C) in the average high-temperature. An average nighttime temperature of 72.7°F (22.6°C) is recorded during September.

Heat index

In September, the average heat index is calculated to be a blistering 105.8°F (41°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Know that the heat index computations account for shaded terrains and slight winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

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

Rainfall

In Tarrytown, in September, it is raining for 17.4 days, with typically 1.61" (41mm) of accumulated precipitation. In Tarrytown, during the entire year, the rain falls for 152.7 days and collects up to 18.11" (460mm) of precipitation.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:14 pm EDT.

Sunshine

In Tarrytown, 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 reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: During September, 7 as the daily maximum UV index converts into the following advice:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.