Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September denotes a minimal variation in the average high-temperature to a still hot 86.2°F (30.1°C) from August's 89.1°F (31.7°C). Throughout the September nights, Mary Esther encounters a low-temperature of 74.5°F (23.6°C).Heat index
During September, the heat index is appraised at a sweltering 96.8°F (36°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. 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.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
The average relative humidity in September in Mary Esther is 73%.Rainfall
In Mary Esther, in September, during 18.1 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. In Mary Esther, during the entire year, the rain falls for 172.9 days and collects up to 38.03" (966mm) of precipitation.Snowfall
In Mary Esther, snow does not fall in March through December.Ocean temperature
In September, the average ocean temperature is 83.3°F (28.5°C).Note: Surface water temperatures between 77°F (25°C) and 84.2°F (29°C) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.
Daylight
In Mary Esther, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 6:23 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:32 pm CDT.
Sunshine
In September, the average sunshine in Mary Esther is 9.5h.UV index
The average daily maximum UV index in September in Mary Esther is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Heed this! UV intensity is much stronger when reflected off sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Mary Esther during September?
What is the average humidity in September in Mary Esther?
How many days does it rain in September in Mary Esther?
When it does not snow in Mary Esther?
How warm is the water in September in Mary Esther?
How many hours of daylight does Mary Esther have in September?
When is the sunrise / sunset in September in Mary Esther?
How long on average sun shines in September in Mary Esther?
What is the UV index reading in September in Mary Esther?
Average temperature in September
Mary Esther, FL
- Average high temperature in September: 86.2°F
The warmest month (with the highest average high temperature) is August (89.1°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 74.5°F
The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (47.1°F).
Average pressure in September
Mary Esther, FL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in September
Mary Esther, FL
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Mary Esther, FL
- Average humidity in September: 73%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Mary Esther, FL
- Average rainfall in September: 3.03"
The wettest month (with the highest rainfall) is August (5.24").
The driest month (with the least rainfall) is May (1.85").
Average rainfall days in September
Mary Esther, FL
- Average rainfall days in September: 18.1 days
The month with the highest number of rainy days is August (25 days).
The month with the least rainy days is November (8 days).
Average snowfall days in September
Mary Esther, FL
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in September
Mary Esther, FL
- Average sea temperature in September: 83.3°F
The best month for swimming (with the highest average sea temperature) is August (86.2°F).
The coldest month (with the lowest average sea temperature) is February (62.3°F).
Average daylight in September /
Average sunshine in September
Mary Esther, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 9h and 3min
The months with the most sunshine are May and June (Average sunshine: 11h and 6min).
The months with the least sunshine are February and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Mary Esther, FL
- Average sunshine days in September: 8.6 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is August (4.1 days).
Average UV index in September
Mary Esther, 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).
Average cloud cover in September
Mary Esther, FL
- Average cloud cover in September: 25
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 22).
Average visibility in September
Mary Esther, 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).
Mary Esther, Florida, USA
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