September weather forecast
Jay, FL

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Weather in September

The first month of the autumn, September, is still a hot month in Jay, Florida, with an average temperature varying between 69.3°F (20.7°C) and 87.6°F (30.9°C).

Temperature

During September, Jay records an average high-temperature of a still tropical 87.6°F (30.9°C), marking a slight divergence from August's 91°F (32.8°C). Jay experiences an average low-temperature of 69.3°F (20.7°C) in the month of September.

Heat index

For September, the heat index is estimated at a very hot 102.2°F (39°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Jay, Florida, the average relative humidity in September is 76%.

Rainfall

In September, in Jay, Florida, the rain falls for 19.1 days. Throughout September, 3.23" (82mm) of precipitation is accumulated. Throughout the year, in Jay, there are 186.5 rainfall days, and 39.45" (1002mm) of precipitation is accumulated.

Snowfall

In Jay, Florida, snow does not fall in April through November.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of September in Jay, sunrise is at 6:25 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:34 pm CDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

The average daily maximum UV index in September in Jay is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum high UV index of 6 in September translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. 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. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

How hot does it get in Jay in September?

During September, Jay experiences an average high-temperature of 87.6°F (30.9°C) and a low-temperature of 69.3°F (20.7°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in September is estimated at 102.2°F (39°C).

What is the average humidity in September in Jay?

In September, the average relative humidity is 76%.

How many days does it rain in September in Jay?

In Jay, in September, during 19.1 rainfall days, 3.23" (82mm) of precipitation is typically accumulated.

When it does not snow in Jay?

In Jay, Florida, snow does not fall in April through November.

How many hours of daylight does Jay have in September?

In September, the average day length is 12h and 20min.

When are sunrise and sunset in September in Jay?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:11 pm. On the last day of the month, in Jay, sunrise is at 6:42 am and sunset at 6:34 pm CDT.

How long on average sun shines in September in Jay?

In Jay, the average sunshine duration in September is 8.9h.

How high is the UV index in September in Jay?

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Jay, FL

Average temperature in September - Jay, FL
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (58.6°F).

  • Average low temperature in September: 69.3°F

The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).

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Average pressure in September
Jay, FL

Average pressure in September - Jay, 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).

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Average wind speed in September
Jay, FL

Average wind speed in September - Jay, FL
  • Average wind speed in September: 4.6mph

The windiest months (with the highest average wind speed) are March and April (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in September
Jay, FL

Average humidity in September - Jay, FL
  • Average humidity in September: 76%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Jay, FL

Average rainfall in September - Jay, FL
  • Average rainfall in September: 3.23"

The wettest month (with the highest rainfall) is August (5.24").
The driest month (with the least rainfall) is November (2.09").

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Average rainfall days in September
Jay, FL

Average rainfall days in September - Jay, FL
  • Average rainfall days in September: 19.1 days

The month with the highest number of rainy days is July (25.9 days).
The month with the least rainy days is November (8.4 days).

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Average snowfall in September
Jay, FL

Average snowfall in September - Jay, FL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Jay, FL

Average snowfall days in September - Jay, FL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Jay, FL

Average daylight in September / Average sunshine in September - Jay, 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 month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Jay, FL

Average sunshine days in September - Jay, FL
  • Average sunshine days in September: 9.2 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is July (3.8 days).

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Average UV index in September
Jay, FL

Average UV index in September - Jay, FL
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in September
Jay, FL

Average cloud cover in September - Jay, FL
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in September
Jay, FL

Average visibility in September - Jay, FL
  • Average visibility in September: 5mi

The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).

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Jay, Florida, USA

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