September weather forecast
Fort Myers Shores, FL

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Weather in September

The first month of the autumn, September, is still a hot month in Fort Myers Shores, Florida, with an average temperature varying between 76.6°F (24.8°C) and 87.6°F (30.9°C).

Temperature

The average high-temperature during September registers at a still tropical 87.6°F (30.9°C), maintaining a close resemblance to the previous month. Fort Myers Shores in September experiences a low-temperature average of 76.6°F (24.8°C).

Heat index

September's heat index is appraised at a fiery hot 102.2°F (39°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The months with the highest humidity in Fort Myers Shores are September and December, with an average relative humidity of 76%.

Rainfall

In September, in Fort Myers Shores, Florida, the rain falls for 20.9 days. Throughout September, 2.95" (75mm) of precipitation is accumulated. In Fort Myers Shores, during the entire year, the rain falls for 159.2 days and collects up to 23.54" (598mm) of precipitation.

Daylight

In September, the average length of the day in Fort Myers Shores is 12h and 18min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:14 pm EDT.

Sunshine

In September, the average sunshine is 9.2h.

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 threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 7 during September morphs into the following directions:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

Is it hot in Fort Myers Shores during September?

September temperatures in Fort Myers Shores vary between a high-temperature of 87.6°F (30.9°C) and a low-temperature of 76.6°F (24.8°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 102.2°F (39°C).

What is the most humid month in Fort Myers Shores?

The months with the highest humidity in Fort Myers Shores, Florida, are September and December, with an average relative humidity of 76%.

What is the average humidity in September in Fort Myers Shores?

The average relative humidity in September in Fort Myers Shores, Florida, is 76%.

How many days does it rain in September in Fort Myers Shores?

In Fort Myers Shores, during September, the rain falls for 20.9 days and regularly aggregates up to 2.95" (75mm) of precipitation.

How many hours of daylight does Fort Myers Shores have in September?

In Fort Myers Shores, the average day length in September is 12h and 18min.

When are sunrise and sunset in September in Fort Myers Shores?

On the first day of September, sunrise is at 7:06 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:14 pm EDT.

How long on average sun shines in September in Fort Myers Shores?

The average sunshine duration in September is 9.2h.

When is the highest UV index in Fort Myers Shores?

The months with the highest UV index in Fort Myers Shores, Florida, are May through September, with an average maximum UV index of 7.

How high is the UV index in September in Fort Myers Shores?

In Fort Myers Shores, Florida, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe 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
Fort Myers Shores, FL

Average temperature in September - Fort Myers Shores, FL
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is August (89.4°F).
The month with the lowest average high temperature is January (71.1°F).

  • Average low temperature in September: 76.6°F

The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (56.7°F).

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Average pressure in September
Fort Myers Shores, FL

Average pressure in September - Fort Myers Shores, FL
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

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Average wind speed in September
Fort Myers Shores, FL

Average wind speed in September - Fort Myers Shores, FL
  • Average wind speed in September: 6.5mph

The windiest months (with the highest average wind speed) are October and November (8.1mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in September
Fort Myers Shores, FL

Average humidity in September - Fort Myers Shores, 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 March (71%).

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Average rainfall in September
Fort Myers Shores, FL

Average rainfall in September - Fort Myers Shores, FL
  • Average rainfall in September: 2.95"

The wettest month (with the highest rainfall) is August (4.72").
The driest months (with the least rainfall) are February and March (0.63").

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Average rainfall days in September
Fort Myers Shores, FL

Average rainfall days in September - Fort Myers Shores, FL
  • Average rainfall days in September: 20.9 days

The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is January (6.3 days).

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Average daylight in September /
Average sunshine in September
Fort Myers Shores, FL

Average daylight in September / Average sunshine in September - Fort Myers Shores, FL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in September: 9h and 1min

The months with the most sunshine are May and July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in September
Fort Myers Shores, FL

Average sunshine days in September - Fort Myers Shores, FL
  • Average sunshine days in September: 7.9 days

The month with the most sunshine days is January (23 days).
The month with the least sunshine days is August (5.9 days).

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Average UV index in September
Fort Myers Shores, FL

Average UV index in September - Fort Myers Shores, 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, February and December (UV index 5).

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Average cloud cover in September
Fort Myers Shores, FL

Average cloud cover in September - Fort Myers Shores, FL
  • Average cloud cover in September: 28

The months with the most cloud cover are January and December (Cloud cover 29).
The months with the least cloud cover are March, April and May (Cloud cover 24).

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Average visibility in September
Fort Myers Shores, FL

Average visibility in September - Fort Myers Shores, 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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Fort Myers Shores, Florida, USA

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