September weather forecast
Old Town, FL

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Weather in September

The first month of the autumn, September, is still a tropical month in Old Town, Florida, with an average temperature ranging between min 73°F (22.8°C) and max 87.1°F (30.6°C).

Temperature

September notes an average high-temperature of a still hot 87.1°F (30.6°C), subtly differing from August's 89.8°F (32.1°C). September brings with it a nighttime average temperature of 73°F (22.8°C) in Old Town, Florida.

Heat index

September's average heat index is computed to be a sweltering 102.2°F (39°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

With an average relative humidity of 77%, September is the most humid month in Old Town.

Rainfall

In September, the rain falls for 17 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. Throughout the year, in Old Town, there are 144.9 rainfall days, and 16.14" (410mm) of precipitation is accumulated.

Snowfall

In Old Town, Florida, snow does not fall in January through November.

Daylight

In Old Town, the average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 7:09 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:25 am and sunset at 7:18 pm EDT.

Sunshine

The average sunshine in September in Old Town, Florida, is 8.8h.

UV index

In Old Town, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, a regular UV index of 6 translates into these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

How hot is September in Old Town?

In Old Town, in September, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 73°F (22.8°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 102.2°F (39°C).

What is the most humid month in Old Town?

The most humid month in Old Town is September, with an average relative humidity of 77%.

What is the average humidity in September in Old Town?

The average relative humidity in September is 77%.

How many days does it rain in September in Old Town?

In Old Town, in September, it is raining for 17 days, with typically 1.34" (34mm) of accumulated precipitation.

When it does not snow in Old Town?

In Old Town, Florida, snow does not fall in January through November.

How many hours of daylight does Old Town have in September?

In September, the average day length in Old Town, Florida, is 12h and 20min.

When is the sunrise / sunset in September in Old Town?

In September, on the first day of the month, sunrise is at 7:09 am and sunset at 7:53 pm. On the last day of the month, in Old Town, sunrise is at 7:25 am and sunset at 7:18 pm EDT.

How long on average sun shines in September in Old Town?

The average sunshine duration in September is 8.8h.

How high is the UV index in September in Old Town?

In Old Town, Florida, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Old Town, FL

Average temperature in September - Old Town, FL
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (63.1°F).

  • Average low temperature in September: 73°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 (47.7°F).

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Average pressure in September
Old Town, FL

Average pressure in September - Old Town, FL
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

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Average wind speed in September
Old Town, FL

Average wind speed in September - Old Town, FL
  • Average wind speed in September: 5.7mph

The windiest months (with the highest average wind speed) are January and March (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in September
Old Town, FL

Average humidity in September - Old Town, FL
  • Average humidity in September: 77%

The month with the highest relative humidity is September (77%).
The months with the lowest relative humidity are January and March (72%).

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Average rainfall in September
Old Town, FL

Average rainfall in September - Old Town, FL
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is August (2.64").
The driest month (with the least rainfall) is March (0.63").

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Average rainfall days in September
Old Town, FL

Average rainfall days in September - Old Town, FL
  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is November (6.1 days).

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Average snowfall days in September
Old Town, FL

Average snowfall days in September - Old Town, FL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Old Town, FL

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 8h and 5min

The months with the most sunshine are May and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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Average sunshine days in September
Old Town, FL

Average sunshine days in September - Old Town, FL
  • Average sunshine days in September: 9.1 days

The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is August (4.3 days).

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Average UV index in September
Old Town, FL

Average UV index in September - Old Town, FL
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).

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Average cloud cover in September
Old Town, FL

Average cloud cover in September - Old Town, FL
  • Average cloud cover in September: 29

The month with the most cloud cover is December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 24).

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Average visibility in September
Old Town, FL

Average visibility in September - Old Town, 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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Old Town, Florida, USA

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