September weather forecastFort Myers Shores, FL
September
Weather in September
The first month of the autumn, September, is still a hot month in Fort Myers Shores, Florida, with an average temperature fluctuating between 87.6°F (30.9°C) and 76.6°F (24.8°C).Temperature
The transition into September marks the average high-temperature at a still hot 87.6°F (30.9°C), differing minimally from August's 89.4°F (31.9°C). Fort Myers Shores in September experiences a low-temperature average of 76.6°F (24.8°C).Heat index
The heat index value for September is estimated at a fiery hot 102.2°F (39°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Heat index determinations are made taking into account the shade and light air movements. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. 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.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
September and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In Fort Myers Shores, in September, during 20.9 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. Throughout the year, in Fort Myers Shores, Florida, there are 159.2 rainfall days, and 23.54" (598mm) of precipitation is accumulated.Daylight
In Fort Myers Shores, the average length of the day in September is 12h and 18min.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.
Sunshine
In Fort Myers Shores, the average sunshine in September 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 value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 7 during September, leads to the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
Average daylight in September /
Average sunshine in September
Fort Myers Shores, FL
- Average daylight in September: 12h and 18min
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 12min
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).
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).
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).
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).
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).
