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 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
The introduction of September notes a subtle temperature variation to a still tropical 87.1°F (30.6°C) from August's 89.8°F (32.1°C). An average low-temperature of 73°F (22.8°C) is anticipated throughout the nights in Jena during September.Heat index
The heat index value during September is estimated at a torrid 102.2°F (39°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to 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, as evaporated sweat carries heat away from the body. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
With an average relative humidity of 77%, September is the most humid month.Rainfall
In Jena, in September, during 17 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Jena, Florida, during the entire year, the rain falls for 144.9 days and collects up to 16.14" (410mm) of precipitation.Snowfall
January through November are months without snowfall in Jena.Daylight
In Jena, the average length of the day in September is 12h and 20min.On the first day of September in Jena, Florida, sunrise is at 7:11 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:19 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In Jena, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
How hot does it get in Jena in September?
What is the most humid month in Jena?
What is the average humidity in September in Jena?
How much does it rain in Jena in September?
When it does not snow in Jena?
How many hours of daylight does Jena have in September?
When are sunrise and sunset in September in Jena?
How many hours of sunshine does Jena have in September?
What is the UV index intensity in September in Jena?
Average temperature in September
Jena, 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).
Average pressure in September
Jena, 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).
Average wind speed in September
Jena, 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).
Average humidity in September
Jena, 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%).
Average rainfall in September
Jena, 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").
Average rainfall days in September
Jena, 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).
Average snowfall days in September
Jena, 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).
Average daylight in September /
Average sunshine in September
Jena, 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).
Average sunshine days in September
Jena, 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).
Average UV index in September
Jena, 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
Jena, 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).
Average visibility in September
Jena, 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).
Jena, Florida, USA
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