September weather forecast
Lake Buena Vista, FL

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Weather in September

September exhibits a gradual retreat from the summer intensity in Lake Buena Vista. A noticeable decline in temperatures becomes evident, with the maximum temperature dipping to 88.5°F (31.4°C) from August's high. This month witnesses the heralding of the fall season, coupled with a softening in the overall climate. The occasional showers, swept in by warm breezes, add a touch of cool freshness to the city. As September progresses, the weather starts to mellow, crafting a soothing atmosphere in Lake Buena Vista.

Temperature

The shift from August to September in Lake Buena Vista is characterized by an average high-temperature of a still hot 88.5°F (31.4°C), not significantly different from the 91°F (32.8°C) of August. Throughout September, the temperature in Lake Buena Vista tends to fall to a consistent average low of 74.5°F (23.6°C).

Heat index

September's heat index is evaluated at a blistering 105.8°F (41°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

September is the most humid month in Lake Buena Vista, Florida, with an average relative humidity of 77%.

Rainfall

In Lake Buena Vista, Florida, in September, during 15.4 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, there are 126.6 rainfall days, and 9.06" (230mm) of precipitation is accumulated.

Daylight

In September, the average length of the day in Lake Buena Vista, Florida, is 12h and 19min.
On the first day of September, sunrise is at 7:04 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:12 pm EDT.

Sunshine

In Lake Buena Vista, the average sunshine in September is 8.5h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Lake Buena Vista. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

How hot is September in Lake Buena Vista?

The high-temperature during September is 88.5°F (31.4°C) and the low-temperature is 74.5°F (23.6°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 105.8°F (41°C).

What is the most humid month in Lake Buena Vista?

With an average relative humidity of 77%, September is the most humid month in Lake Buena Vista.

What is the average humidity in September in Lake Buena Vista?

In Lake Buena Vista, the average relative humidity in September is 77%.

How many days does it rain in September in Lake Buena Vista?

In Lake Buena Vista, in September, it is raining for 15.4 days, with typically 0.75" (19mm) of accumulated precipitation.

How many hours of daylight does Lake Buena Vista have in September?

In Lake Buena Vista, Florida, the average day length in September is 12h and 19min.

When is the sunrise / sunset in September in Lake Buena Vista?

On the first day of September, sunrise is at 7:04 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:12 pm EDT.

How long on average sun shines in September in Lake Buena Vista?

In September, the average sunshine duration is 8.5h.

What are the months with the highest UV index in Lake Buena Vista?

The months with the highest UV index in Lake Buena Vista are May through September, with an average maximum UV index of 7.

What is the UV index reading in September in Lake Buena Vista?

In September, the average daily maximum UV index in Lake Buena Vista, Florida, is 7. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
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 Buena Vista, FL

Average temperature in September - Lake Buena Vista, FL
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (68.5°F).

  • Average low temperature in September: 74.5°F

The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (51.3°F).

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Average pressure in September
Lake Buena Vista, FL

Average pressure in September - Lake Buena Vista, FL
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

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Average wind speed in September
Lake Buena Vista, FL

Average wind speed in September - Lake Buena Vista, FL
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

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Average humidity in September
Lake Buena Vista, FL

Average humidity in September - Lake Buena Vista, FL
  • Average humidity in September: 77%

The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in September
Lake Buena Vista, FL

Average rainfall in September - Lake Buena Vista, FL
  • Average rainfall in September: 0.75"

The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is March (0.2").

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Average rainfall days in September
Lake Buena Vista, FL

Average rainfall days in September - Lake Buena Vista, FL
  • Average rainfall days in September: 15.4 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is January (4.8 days).

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Average daylight in September /
Average sunshine in September
Lake Buena Vista, FL

Average daylight in September / Average sunshine in September - Lake Buena Vista, 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: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in September
Lake Buena Vista, FL

Average sunshine days in September - Lake Buena Vista, FL
  • Average sunshine days in September: 11.4 days

The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is July (6.6 days).

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Average UV index in September
Lake Buena Vista, FL

Average UV index in September - Lake Buena Vista, 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).

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Average cloud cover in September
Lake Buena Vista, FL

Average cloud cover in September - Lake Buena Vista, FL
  • Average cloud cover in September: 34

The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are May and October (Cloud cover 30).

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Average visibility in September
Lake Buena Vista, FL

Average visibility in September - Lake Buena Vista, 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 Buena Vista, Florida, USA

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