September weather forecast
Tranquillity, TN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Tranquillity, Tennessee, with an average temperature fluctuating between 81°F (27.2°C) and 59.9°F (15.5°C).

Temperature

September brings a slight decrease in temperature, down from a tropical 86.9°F (30.5°C) in August to a warm 81°F (27.2°C). Nighttime temperature experiences an average drop to a refreshing 59.9°F (15.5°C) in September.

Heat index

For September, the heat index is computed to be a tropical 86°F (30°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
For clarity, heat index numbers account for light winds and areas under shade. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

The average relative humidity in September in Tranquillity is 76%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.7 days and typically collects 2.32" (59mm) of precipitation.

Snowfall

In Tranquillity, snow does not fall in May through October.

Daylight

In September, the average length of the day in Tranquillity is 12h and 23min.
On the first day of the month, sunrise is at 7:11 am and sunset at 8:05 pm. On the last day of September, sunrise is at 7:33 am and sunset at 7:23 pm EDT.

Sunshine

In Tranquillity, the average sunshine in September is 8.5h.

UV index

In Tranquillity, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: During September, 5 as the daily maximum UV index converts into the following advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What are September temperatures in Tranquillity?

The high-temperature in Tranquillity during September is 81°F (27.2°C) and the low-temperature is 59.9°F (15.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in September is computed to be 86°F (30°C).

What is the average humidity in September in Tranquillity?

The average relative humidity in September in Tranquillity is 76%.

What is the driest month in Tranquillity?

September is the month with the least rainfall in Tranquillity. Rain falls for 11.7 days and accumulates 2.32" (59mm) of precipitation.

How many days does it rain in September in Tranquillity?

In Tranquillity, in September, during 11.7 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

When it does not snow in Tranquillity?

In Tranquillity, snow does not fall in May through October.

How many hours of daylight does Tranquillity have in September?

In Tranquillity, Tennessee, the average day length in September is 12h and 23min.

When is the sunrise / sunset in September in Tranquillity?

On the first day of September, sunrise is at 7:11 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:23 pm EDT.

How many hours of sunshine does Tranquillity have in September?

In September, the average sunshine duration in Tranquillity is 8.5h.

What is the UV index intensity in September in Tranquillity?

In Tranquillity, Tennessee, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's 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
Tranquillity, TN

Average temperature in September - Tranquillity, TN
  • Average high temperature in September: 81°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (45.5°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in September
Tranquillity, TN

Average pressure in September - Tranquillity, TN
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in September
Tranquillity, TN

Average wind speed in September - Tranquillity, TN
  • Average wind speed in September: 4.2mph

The windiest months (with the highest average wind speed) are February, March and April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).

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Average humidity in September
Tranquillity, TN

Average humidity in September - Tranquillity, TN
  • Average humidity in September: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, August, October and November (75%).

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Average rainfall in September
Tranquillity, TN

Average rainfall in September - Tranquillity, TN
  • Average rainfall in September: 2.32"

The wettest months (with the highest rainfall) are July and December (4.29").
The driest month (with the least rainfall) is September (2.32").

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Average rainfall days in September
Tranquillity, TN

Average rainfall days in September - Tranquillity, TN
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in September
Tranquillity, TN

Average snowfall in September - Tranquillity, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Tranquillity, TN

Average snowfall days in September - Tranquillity, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Tranquillity, TN

Average daylight in September / Average sunshine in September - Tranquillity, TN
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 8h and 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Tranquillity, TN

Average sunshine days in September - Tranquillity, TN
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (10.2 days).

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Average UV index in September
Tranquillity, TN

Average UV index in September - Tranquillity, TN
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Tranquillity, TN

Average cloud cover in September - Tranquillity, TN
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Tranquillity, TN

Average visibility in September - Tranquillity, TN
  • Average visibility in September: 6mi

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

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Tranquillity, Tennessee, USA

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