Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September reports an average high-temperature of a still tropical 86.9°F (30.5°C), slightly varied from August's 88.2°F (31.2°C). In September, Cayo Pelau experiences an average nighttime temperature of 77.7°F (25.4°C).Heat index
September's average heat index is calculated to be a fiery hot 100.4°F (38°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Heat index's context suggests values are appropriate for shady areas and slight breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in September is 76%.Rainfall
In September, in Cayo Pelau, Florida, the rain falls for 21.9 days. Throughout September, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 168.6 rainfall days, and 20.2" (513mm) of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 18min.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, sunrise is at 7:21 am and sunset at 7:15 pm EDT.
Sunshine
In Cayo Pelau, Florida, the average sunshine in September is 9.2h.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 exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 7 suggests these recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September in Cayo Pelau?
How many hours of daylight does Cayo Pelau have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index?
How high is the UV index in September?
Average temperature in September
Cayo Pelau, FL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is January (69.1°F).
- Average low temperature in September: 77.7°F
The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (57.4°F).
Average pressure in September
Cayo Pelau, 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
Cayo Pelau, FL
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is November (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Cayo Pelau, FL
- Average humidity in September: 76%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are March and May (73%).
Average rainfall in September
Cayo Pelau, FL
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in September
Cayo Pelau, FL
- Average rainfall days in September: 21.9 days
The month with the highest number of rainy days is August (23.6 days).
The month with the least rainy days is January (6.6 days).
Average daylight in September /
Average sunshine in September
Cayo Pelau, FL
- Average daylight in September: 12h and 2min
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: 9h and 1min
The month with the most sunshine is May (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Cayo Pelau, FL
- Average sunshine days in September: 5.1 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is August (4 days).
Average UV index in September
Cayo Pelau, 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 and December (UV index 5).
Average cloud cover in September
Cayo Pelau, FL
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 28).
The month with the least cloud cover is May (Cloud cover 22).
Average visibility in September
Cayo Pelau, 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).
Cayo Pelau, Florida, USA
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