September weather forecastCopeland, FL
September
Weather in September
September, the first month of the autumn in Copeland, is also a hot month, with an average temperature fluctuating between 78.4°F (25.8°C) and 87.1°F (30.6°C).Temperature
The average high-temperature during September registers at a still tropical 87.1°F (30.6°C), maintaining a close resemblance to the previous month. A consistent average low-temperature of 78.4°F (25.8°C), with a minor variance from the daytime highs, is noted during the nights of September.Heat index
For most parts of September, the heat index is evaluated at a torrid 100.4°F (38°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. 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 great significance to children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
In September, the average relative humidity is 75%.Rainfall
In Copeland, during September, the rain falls for 21.5 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Copeland, during the entire year, the rain falls for 162.1 days and collects up to 21.69" (551mm) of precipitation.Daylight
The average length of the day in September is 12h and 18min.On the first day of the month, sunrise is at 7:05 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:12 pm EDT.
Sunshine
In September, the average sunshine is 9.2h.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 exposure to the Sun's UV rays for the average person.Note: In September, the UV index of 7 transforms into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Copeland, FL
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (71.6°F).
- Average low temperature in September: 78.4°F
The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure in September
Copeland, FL
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.94"Hg).
Average wind speed in September
Copeland, FL
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is November (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
Copeland, FL
- Average humidity in September: 75%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is March (72%).
Average rainfall in September
Copeland, FL
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is March (0.63").
Average rainfall days in September
Copeland, FL
- Average rainfall days in September: 21.5 days
The month with the highest number of rainy days is August (22.4 days).
The month with the least rainy days is February (7 days).
Average daylight in September /
Average sunshine in September
Copeland, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 9h and 12min
The months with the most sunshine are May and July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Copeland, FL
- Average sunshine days in September: 7.1 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is August (6.8 days).
Average UV index in September
Copeland, 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 and February (UV index 5).
Average cloud cover in September
Copeland, FL
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 28).
The months with the least cloud cover are March and April (Cloud cover 22).
Average visibility in September
Copeland, 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).





