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
The unfolding of September shows an average high-temperature of a still tropical 88°F (31.1°C), indicating a slight variance from August's 90°F (32.2°C). The average low-temperature of 73.6°F (23.1°C) is witnessed during September.Heat index
September's mean heat index is estimated at a scorching 105.8°F (41°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
With an average relative humidity of 80%, September is the most humid month.Rainfall
In Roux Quarters, in September, it is raining for 20.2 days, with typically 1.85" (47mm) of accumulated precipitation. Throughout the year, there are 166.5 rainfall days, and 19.09" (485mm) of precipitation is accumulated.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 7:47 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:13 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 7 in September leads to these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. 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. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the most humid month?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index in Roux Quarters?
How high is the UV index in September?
Average temperature in September
Roux Quarters, FL
- Average high temperature in September: 88°F
The warmest months (with the highest average high temperature) are July and August (90°F).
The month with the lowest average high temperature is January (69.3°F).
- Average low temperature in September: 73.6°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (51.8°F).
Average pressure in September
Roux Quarters, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in September
Roux Quarters, FL
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are January, March and April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Roux Quarters, FL
- Average humidity in September: 80%
The month with the highest relative humidity is September (80%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Roux Quarters, FL
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is March (0.47").
Average rainfall days in September
Roux Quarters, FL
- Average rainfall days in September: 20.2 days
The month with the highest number of rainy days is July (24.3 days).
The month with the least rainy days is January (7.4 days).
Average daylight in September /
Average sunshine in September
Roux Quarters, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are May and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Roux Quarters, FL
- Average sunshine days in September: 6.7 days
The month with the most sunshine days is January (21.9 days).
The months with the least sunshine days are July and August (4.8 days).
Average UV index in September
Roux Quarters, 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 month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Roux Quarters, FL
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in September
Roux Quarters, 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).
Roux Quarters, Florida, USA
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