September weather forecast
Lake Lucerne, FL

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Weather in September

September, the first month of the autumn in Lake Lucerne, is still a hot month, with an average temperature fluctuating between 86.9°F (30.5°C) and 79.9°F (26.6°C).

Temperature

Lake Lucerne starts September with an average high-temperature of a still tropical 86.9°F (30.5°C), a minor shift from August's 88.9°F (31.6°C). Lake Lucerne notes a steady average temperature of 79.9°F (26.6°C) during the nights of September.

Heat index

September's heat index is estimated at a torrid 98.6°F (37°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. 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 hold great significance to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. 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. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In Lake Lucerne, the average relative humidity in September is 72%.

Rainfall

In Lake Lucerne, Florida, in September, it is raining for 10.6 days, with typically 0.43" (11mm) of accumulated precipitation. In Lake Lucerne, during the entire year, the rain falls for 88.7 days and collects up to 6.14" (156mm) of precipitation.

Daylight

In Lake Lucerne, the average length of the day in September is 12h and 18min.
On the first day of September, sunrise is at 7:01 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:08 pm EDT.

Sunshine

In Lake Lucerne, the average sunshine in September is 9h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

Is it hot in Lake Lucerne during September?

Lake Lucerne in September has an average high-temperature of 86.9°F (30.5°C) and an average low-temperature of 79.9°F (26.6°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 98.6°F (37°C).

What is the average humidity in September in Lake Lucerne?

In Lake Lucerne, the average relative humidity in September is 72%.

How many days does it rain in September in Lake Lucerne?

In Lake Lucerne, Florida, in September, it is raining for 10.6 days, with typically 0.43" (11mm) of accumulated precipitation.

How many hours of daylight does Lake Lucerne have in September?

In Lake Lucerne, Florida, the average day length in September is 12h and 18min.

When are sunrise and sunset in September in Lake Lucerne?

In September, on the first day of the month, sunrise is at 7:01 am and sunset at 7:40 pm. On the last day of the month, in Lake Lucerne, sunrise is at 7:13 am and sunset at 7:08 pm EDT.

How long on average sun shines in September in Lake Lucerne?

In September, the average sunshine duration is 9h.

When is the highest UV index in Lake Lucerne?

The months with the highest UV index in Lake Lucerne are April through September, with an average maximum UV index of 7.

What is the UV index reading in September in Lake Lucerne?

The average daily maximum UV index in September in Lake Lucerne, Florida, is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Lake Lucerne, FL

Average temperature in September - Lake Lucerne, FL
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is January (73.4°F).

  • Average low temperature in September: 79.9°F

The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (63.1°F).

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Average pressure in September
Lake Lucerne, FL

Average pressure in September - Lake Lucerne, FL
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).

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Average wind speed in September
Lake Lucerne, FL

Average wind speed in September - Lake Lucerne, FL
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in September
Lake Lucerne, FL

Average humidity in September - Lake Lucerne, FL
  • Average humidity in September: 72%

The month with the highest relative humidity is December (74%).
The month with the lowest relative humidity is March (68%).

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Average rainfall in September
Lake Lucerne, FL

Average rainfall in September - Lake Lucerne, FL
  • Average rainfall in September: 0.43"

The wettest month (with the highest rainfall) is August (1.06").
The driest month (with the least rainfall) is January (0.2").

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Average rainfall days in September
Lake Lucerne, FL

Average rainfall days in September - Lake Lucerne, FL
  • Average rainfall days in September: 10.6 days

The months with the highest number of rainy days are July and August (11.3 days).
The month with the least rainy days is January (4 days).

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Average daylight in September /
Average sunshine in September
Lake Lucerne, FL

Average daylight in September / Average sunshine in September - Lake Lucerne, FL
  • Average daylight in September: 12h and 2min

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 0min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).

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Average sunshine days in September
Lake Lucerne, FL

Average sunshine days in September - Lake Lucerne, FL
  • Average sunshine days in September: 11.9 days

The month with the most sunshine days is January (25.5 days).
The month with the least sunshine days is July (11.2 days).

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Average UV index in September
Lake Lucerne, FL

Average UV index in September - Lake Lucerne, FL
  • Average UV index in September: 7

The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).

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Average cloud cover in September
Lake Lucerne, FL

Average cloud cover in September - Lake Lucerne, FL
  • Average cloud cover in September: 29

The month with the most cloud cover is October (Cloud cover 34).
The months with the least cloud cover are April and July (Cloud cover 26).

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Average visibility in September
Lake Lucerne, FL

Average visibility in September - Lake Lucerne, 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).

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Lake Lucerne, Florida, USA

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