September weather forecastFlorida City, FL
September
Weather in September
September, the first month of the autumn in Florida City, is also a hot month, with an average temperature fluctuating between 79.7°F (26.5°C) and 88°F (31.1°C).Temperature
September's beginning signals an average high-temperature of a still hot 88°F (31.1°C), barely different from August's 90.1°F (32.3°C). Consistently, Florida City reports average nighttime temperatures of 79.7°F (26.5°C) during September, a marginal step down from its daytime highs.Heat index
In September, the average heat index is evaluated at a very hot 100.4°F (38°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', comes about by integrating the temperature readings with the humidity levels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for 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.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
The average relative humidity in September is 71%.Rainfall
In Florida City, during September, the rain falls for 15.7 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 132.6 rainfall days, and 10.67" (271mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 17min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:09 pm EDT.
Sunshine
In Florida City, 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 of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 7 in September leads to these recommendations:
Ward off overexposure. Defence against solar harm is crucial. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Florida City, FL
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (74.7°F).
- Average low temperature in September: 79.7°F
The month with the highest average low temperature is August (81.3°F).
The coldest month (with the lowest average low temperature) is January (61.9°F).
Average pressure in September
Florida City, FL
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).
Average wind speed in September
Florida City, FL
- Average wind speed in September: 7mph
The windiest months (with the highest average wind speed) are March and April (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Florida City, FL
- Average humidity in September: 71%
The month with the highest relative humidity is December (74%).
The month with the lowest relative humidity is March (67%).
Average rainfall in September
Florida City, FL
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is March (0.28").
Average rainfall days in September
Florida City, FL
- Average rainfall days in September: 15.7 days
The month with the highest number of rainy days is August (17.4 days).
The month with the least rainy days is December (5.8 days).
Average daylight in September /
Average sunshine in September
Florida City, 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 36min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Florida City, FL
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in September
Florida City, 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 December (UV index 5).
Average cloud cover in September
Florida City, FL
- Average cloud cover in September: 29
The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).
Average visibility in September
Florida City, 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).
