September weather forecastLake Fern, FL
September
Weather in September
September, the first month of the autumn in Lake Fern, is also a hot month, with an average temperature fluctuating between 88.7°F (31.5°C) and 74.8°F (23.8°C).Temperature
In September, the average high-temperature registers at a still hot 88.7°F (31.5°C), nearly identical to August's 90.5°F (32.5°C). Lake Fern, during the month of September, experiences an average low-temperature of 74.8°F (23.8°C).Heat index
September's heat index is calculated to be a scorching 105.8°F (41°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Understanding the heat index involves considering values for shaded locales 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 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
September and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In Lake Fern, during September, the rain falls for 20 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Lake Fern, during the entire year, the rain falls for 162.9 days and collects up to 23.7" (602mm) of precipitation.Daylight
In September, the average length of the day 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 Lake Fern, 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 reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lake Fern, FL
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is January (67.6°F).
- Average low temperature in September: 74.8°F
The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (52°F).
Average pressure in September
Lake Fern, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in September
Lake Fern, FL
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is July (5.3mph).
Average humidity in September
Lake Fern, FL
- Average humidity in September: 76%
The months with the highest relative humidity are September and December (76%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Lake Fern, FL
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is July (4.45").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in September
Lake Fern, FL
- Average rainfall days in September: 20 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is January (6.8 days).
Average daylight in September /
Average sunshine in September
Lake Fern, FL
- Average daylight in September: 12h and 18min
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 54min
The month with the most sunshine is May (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Lake Fern, FL
- Average sunshine days in September: 7.1 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is August (4.3 days).
Average UV index in September
Lake Fern, 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
Lake Fern, FL
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 33).
The month with the least cloud cover is May (Cloud cover 24).
Average visibility in September
Lake Fern, 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).
