September weather forecast
Waterbury, FL

The first month of the autumn, September, is also a hot month in Waterbury, Florida, with temperature in the range of an average low of 77.4°F (25.2°C) and an average high of 86.9°F (30.5°C).

Temperature

Waterbury, Florida, observes an average high-temperature of a still hot 86.9°F (30.5°C) in September, barely different from 88.5°F (31.4°C) in August. Waterbury records a consistent low-temperature of 77.4°F (25.2°C) during September nights.

Heat index

In September, the heat index is computed to be a torrid 100.4°F (38°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. 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.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In Waterbury, the average relative humidity in September is 75%.

Rainfall

In September, in Waterbury, the rain falls for 23.5 days. Throughout September, 4.61" (117mm) of precipitation is accumulated. In Waterbury, during the entire year, the rain falls for 183.1 days and collects up to 34.92" (887mm) of precipitation.

Daylight

In Waterbury, the average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:08 am and sunset at 7:49 pm. On the last day of September, in Waterbury, Florida, sunrise is at 7:21 am and sunset at 7:16 pm EDT.

Sunshine

In Waterbury, the average sunshine in September is 9h.

UV index

The months with the highest UV index in Waterbury, Florida, are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.