September weather forecast
Trinity, FL

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Weather in September

The first month of the autumn, September, is still a hot month in Trinity, Florida, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 77.5°F (25.3°C).

Temperature

Trinity's shift into September is marked by a subtle change to a still tropical 86.7°F (30.4°C) from August's 88.3°F (31.3°C) in temperature. Throughout the September nights, Trinity encounters a low-temperature of 77.5°F (25.3°C).

Heat index

The average heat index in September is calculated to be a very hot 98.6°F (37°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in September in Trinity is 75%.

Rainfall

In Trinity, during September, the rain falls for 15.7 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, there are 120.5 rainfall days, and 9.45" (240mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of September, sunrise is at 7:09 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:17 pm EDT.

Sunshine

In September, the average sunshine 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 threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Deflect overexposure. Sun protection is a necessity. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

How hot is September in Trinity?

The average high-temperature, in September, in Trinity, is 86.7°F (30.4°C), while the average low-temperature is 77.5°F (25.3°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 98.6°F (37°C).

What is the average humidity in September in Trinity?

The average relative humidity in September is 75%.

How much does it rain in Trinity in September?

In Trinity, Florida, in September, during 15.7 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

How many hours of daylight does Trinity have in September?

In September, the average day length is 12h and 19min.

When are sunrise and sunset in September in Trinity?

In September, on the first day of the month, sunrise is at 7:09 am and sunset at 7:51 pm. On the last day of the month, in Trinity, sunrise is at 7:23 am and sunset at 7:17 pm EDT.

How many hours of sunshine does Trinity have in September?

The average sunshine duration in September in Trinity is 9.2h.

What is the month with the highest UV index in Trinity?

May through September, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index intensity in September in Trinity?

In Trinity, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Trinity, FL

Average temperature in September - Trinity, FL
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (66°F).

  • Average low temperature in September: 77.5°F

The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (54.5°F).

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Average pressure in September
Trinity, FL

Average pressure in September - Trinity, FL
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

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Average wind speed in September
Trinity, FL

Average wind speed in September - Trinity, FL
  • Average wind speed in September: 7.3mph

The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in September
Trinity, FL

Average humidity in September - Trinity, FL
  • Average humidity in September: 75%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is May (72%).

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Average rainfall in September
Trinity, FL

Average rainfall in September - Trinity, FL
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is March (0.2").

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Average rainfall days in September
Trinity, FL

Average rainfall days in September - Trinity, FL
  • Average rainfall days in September: 15.7 days

The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is November (5.5 days).

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

Average daylight in September / Average sunshine in September - Trinity, FL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is May (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in September
Trinity, FL

Average sunshine days in September - Trinity, FL
  • Average sunshine days in September: 10.6 days

The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is July (6.7 days).

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Average UV index in September
Trinity, FL

Average UV index in September - Trinity, 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 month with the lowest UV index is January (UV index 4).

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Average cloud cover in September
Trinity, FL

Average cloud cover in September - Trinity, FL
  • Average cloud cover in September: 26

The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 20).

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Average visibility in September
Trinity, FL

Average visibility in September - Trinity, 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).

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Trinity, Florida, USA

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