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's advent denotes a minor fluctuation in the average high-temperature to a still hot 86.5°F (30.3°C) from August's 87.8°F (31°C). An average low-temperature of 77.9°F (25.5°C) is witnessed throughout the month of September, a mere drop from the daytime peak.Heat index
The heat index for September is calculated to be a very hot 98.6°F (37°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Observations indicate that the heat index values are for shady locations with light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
In September, the average relative humidity is 74%.Rainfall
In Point Brittany, in September, it is raining for 6.5 days, with typically 0.24" (6mm) of accumulated precipitation. Throughout the year, there are 60.4 rainfall days, and 5.16" (131mm) of precipitation is accumulated.Daylight
In Point Brittany, the average length of the day in September is 12h and 19min.On the first day of September, sunrise is at 7:09 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:17 pm EDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in Point Brittany in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Point Brittany have in September?
What are the months with the highest UV index?
What is the UV index reading in September in Point Brittany?
Average temperature in September
Point Brittany, FL
- Average high temperature in September: 86.5°F
The warmest month (with the highest average high temperature) is August (87.8°F).
The month with the lowest average high temperature is January (66.7°F).
- Average low temperature in September: 77.9°F
The month with the highest average low temperature is August (80.6°F).
The coldest month (with the lowest average low temperature) is January (56.7°F).
Average pressure in September
Point Brittany, 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
Point Brittany, FL
- Average wind speed in September: 8mph
The windiest months (with the highest average wind speed) are January and November (10.1mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Point Brittany, FL
- Average humidity in September: 74%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are March, May and October (73%).
Average rainfall in September
Point Brittany, FL
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is March (0.08").
Average rainfall days in September
Point Brittany, FL
- Average rainfall days in September: 6.5 days
The month with the highest number of rainy days is July (8.8 days).
The month with the least rainy days is January (2.6 days).
Average daylight in September /
Average sunshine in September
Point Brittany, 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: 9h and 2min
The month with the most sunshine is May (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Point Brittany, FL
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is March (27.6 days).
The month with the least sunshine days is August (13.5 days).
Average UV index in September
Point Brittany, 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
Point Brittany, FL
- Average cloud cover in September: 26
The months with the most cloud cover are January and December (Cloud cover 29).
The month with the least cloud cover is May (Cloud cover 20).
Average visibility in September
Point Brittany, 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).
Point Brittany, Florida, USA
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