September weather forecast
Tavernier, FL

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Weather in September

The first month of the autumn, September, is still a warm month in Tavernier, Florida, with an average temperature ranging between min 81.7°F (27.6°C) and max 84.6°F (29.2°C).

Temperature

As September takes its course, Tavernier's average high-temperature registers at a still moderately hot 84.6°F (29.2°C), closely aligning with the preceding month. In September, Tavernier temperatures settle at a low of 81.7°F (27.6°C) during the nights, reflecting a minor change from daytime highs.

Heat index

September's mean heat index is computed to be a hot 93.2°F (34°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. 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 'apparent temperature' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

In Tavernier, the average relative humidity in September is 74%.

Rainfall

In September, the rain falls for 22.9 days. Throughout September, 4.25" (108mm) of precipitation is accumulated. Throughout the year, there are 190.1 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

Ocean temperature

In Tavernier, Florida, the average seawater temperature in September is 85.6°F (29.8°C).
Note: For any water activity, having surface water temperatures from 77°F (25°C) to 84.2°F (29°C) is considered outstanding and highly delightful for lengthened periods.

Daylight

In September, the average length of the day is 12h and 17min.
On the first day of the month, sunrise is at 7:03 am and sunset at 7:40 pm. On the last day of September, in Tavernier, sunrise is at 7:14 am and sunset at 7:09 pm EDT.

Sunshine

The average sunshine in September is 9h.

UV index

The months with the highest UV index in Tavernier are April through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: During September, 7 as the daily maximum UV index converts into the following advice:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Notice! The reflection of water and sand increases the UV radiation significantly.

Frequently asked questions

How hot is it in September?

The high-temperature during September is 84.6°F (29.2°C) and the low-temperature is 81.7°F (27.6°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 93.2°F (34°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How much does it rain in September?

In Tavernier, in September, during 22.9 rainfall days, 4.25" (108mm) of precipitation is typically accumulated.

What is the ocean temperature in September in Tavernier?

In Tavernier, the average seawater temperature in September is 85.6°F (29.8°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in September?

The average day length in September in Tavernier is 12h and 17min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:03 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:09 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 9h.

What are the months with the highest UV index?

April through October, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index reading in September?

In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.

Average temperature in September
Tavernier, FL

Average temperature in September - Tavernier, FL
  • Average high temperature in September: 84.6°F

The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.7°F).

  • Average low temperature in September: 81.7°F

The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (66.9°F).

Average pressure in September
Tavernier, FL

Average pressure in September - Tavernier, FL
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).

Average wind speed in September
Tavernier, FL

Average wind speed in September - Tavernier, FL
  • Average wind speed in September: 9.4mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

Average humidity in September
Tavernier, FL

Average humidity in September - Tavernier, FL
  • Average humidity in September: 74%

The months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).

Average rainfall in September
Tavernier, FL

Average rainfall in September - Tavernier, FL
  • Average rainfall in September: 4.25"

The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (0.59").

Average rainfall days in September
Tavernier, FL

Average rainfall days in September - Tavernier, FL
  • Average rainfall days in September: 22.9 days

The month with the highest number of rainy days is September (22.9 days).
The month with the least rainy days is February (9.7 days).

Average sea temperature in September
Tavernier, FL

Average sea temperature in September - Tavernier, FL
  • Average sea temperature in September: 85.6°F

The best month for swimming (with the highest average sea temperature) is August (86.8°F).
The coldest month (with the lowest average sea temperature) is February (72.6°F).

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

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

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in September
Tavernier, FL

Average sunshine days in September - Tavernier, FL
  • Average sunshine days in September: 5.2 days

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).

Average UV index in September
Tavernier, FL

Average UV index in September - Tavernier, FL
  • Average UV index in September: 7

The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).

Average cloud cover in September
Tavernier, FL

Average cloud cover in September - Tavernier, FL
  • Average cloud cover in September: 30

The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).

Average visibility in September
Tavernier, FL

Average visibility in September - Tavernier, 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).

Tavernier, Florida, USA

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