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 in September
- Average snowfall days 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
Smyrna marks the start of September with an average high-temperature of a still tropical 86.9°F (30.5°C), hinting at a slight fluctuation from August's 90.1°F (32.3°C). During the nights in September, an average low-temperature of 70.7°F (21.5°C) is observed.Heat index
The heat index value for September is evaluated at a fiery hot 100.4°F (38°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Heat index evaluations are typically in the context of light winds and shaded environments. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
In September, the average relative humidity is 76%.Rainfall
In September, in Smyrna, the rain falls for 18.5 days. Throughout September, 2.87" (73mm) of precipitation is accumulated. In Smyrna, during the entire year, the rain falls for 185.4 days and collects up to 39.13" (994mm) of precipitation.Snowfall
February through December are months without snowfall.Daylight
In Smyrna, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 6:19 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:28 pm CDT.
Sunshine
The average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Smyrna have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September in Smyrna?
How high is the UV index in September?
Average temperature in September
Smyrna, FL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 70.7°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).
Average pressure in September
Smyrna, 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, August and September (29.98"Hg).
Average wind speed in September
Smyrna, FL
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Smyrna, FL
- Average humidity in September: 76%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Smyrna, FL
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is August (5.94").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in September
Smyrna, FL
- Average rainfall days in September: 18.5 days
The month with the highest number of rainy days is August (25.6 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in September
Smyrna, FL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Smyrna, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Smyrna, 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: 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 February (Average sunshine: 5h and 24min).
Average sunshine days in September
Smyrna, FL
- Average sunshine days in September: 9 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is August (3.9 days).
Average UV index in September
Smyrna, 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 and December (UV index 3).
Average cloud cover in September
Smyrna, FL
- Average cloud cover in September: 28
The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are May and October (Cloud cover 26).
Average visibility in September
Smyrna, 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).
Smyrna, Florida, USA
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