September weather forecastRiviera Lagoons, FL
September
Weather in September
The first month of the autumn, September, is also a hot month in Riviera Lagoons, Florida, with an average temperature ranging between min 75°F (23.9°C) and max 88.7°F (31.5°C).Temperature
With the arrival of September, Riviera Lagoons's average high-temperature registers at a still tropical 88.7°F (31.5°C), indicating a subtle variation from the previous month. In September, the recorded average low-temperature is a moderately hot 75°F (23.9°C).Heat index
The heat index value during September is appraised at a blisteringly hot 107.6°F (42°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. 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.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
The most humid month is September, with an average relative humidity of 78%.Rainfall
In Riviera Lagoons, in September, it is raining for 22.6 days, with typically 3.5" (89mm) of accumulated precipitation. In Riviera Lagoons, Florida, during the entire year, the rain falls for 181.8 days and collects up to 29.37" (746mm) of precipitation.Daylight
In Riviera Lagoons, the average length of the day in September is 12h and 18min.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 7:15 pm EDT.
Sunshine
In Riviera Lagoons, 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. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 7 in September transforms into the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Riviera Lagoons, FL
- Average high temperature in September: 88.7°F
The warmest months (with the highest average high temperature) are July and August (90.1°F).
The month with the lowest average high temperature is January (70.9°F).
- Average low temperature in September: 75°F
The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (54.3°F).
Average pressure in September
Riviera Lagoons, FL
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in September
Riviera Lagoons, FL
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January and March (7.5mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in September
Riviera Lagoons, FL
- Average humidity in September: 78%
The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Riviera Lagoons, FL
- Average rainfall in September: 3.5"
The wettest month (with the highest rainfall) is August (5.39").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days in September
Riviera Lagoons, FL
- Average rainfall days in September: 22.6 days
The month with the highest number of rainy days is August (25.6 days).
The months with the least rainy days are January and February (8.1 days).
Average daylight in September /
Average sunshine in September
Riviera Lagoons, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Riviera Lagoons, FL
- Average sunshine days in September: 4.9 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is August (3.8 days).
Average UV index in September
Riviera Lagoons, FL
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 5).
Average cloud cover in September
Riviera Lagoons, FL
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 32).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in September
Riviera Lagoons, FL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
