September weather forecast
Forestwood, TN

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Weather in September

September, the first month of the autumn in Forestwood, is still a warm month, with an average temperature ranging between min 60.6°F (15.9°C) and max 81.5°F (27.5°C).

Temperature

The shift from August to September coincides with a small decrease in the average high-temperature, down to a warm 81.5°F (27.5°C) from a tropical 87.4°F (30.8°C). Forestwood cools down to an average low-temperature of 60.6°F (15.9°C) throughout the month of September.

Heat index

The heat index in September is evaluated at a hot 86°F (30°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

In September, the average relative humidity is 76%.

Rainfall

September is the month with the least rainfall. Rain falls for 7.5 days and accumulates 0.43" (11mm) of precipitation.

Snowfall

In Forestwood, Tennessee, snow does not fall in April through November.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm EDT.

Sunshine

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

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The high-temperature during September is 81.5°F (27.5°C) and the low-temperature is 60.6°F (15.9°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 76%.

What is the driest month?

The month with the least rainfall in Forestwood is September, when the rain falls for 7.5 days and typically collects 0.43" (11mm) of precipitation.

How much does it rain in September?

In Forestwood, during September, the rain falls for 7.5 days and regularly aggregates up to 0.43" (11mm) of precipitation.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in September?

The average day length in September is 12h and 23min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm EDT.

How many hours of sunshine does Forestwood have in September?

The average sunshine duration in September is 8.5h.

How high is the UV index in September?

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

Average temperature in September - Forestwood, TN
  • Average high temperature in September: 81.5°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 (46°F).

  • Average low temperature in September: 60.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure in September
Forestwood, TN

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in September
Forestwood, TN

Average wind speed in September - Forestwood, TN
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in September
Forestwood, TN

Average humidity in September - Forestwood, 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, October and November (75%).

Average rainfall in September
Forestwood, TN

Average rainfall in September - Forestwood, TN
  • Average rainfall in September: 0.43"

The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in September
Forestwood, TN

Average rainfall days in September - Forestwood, TN
  • Average rainfall days in September: 7.5 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).

Average snowfall in September
Forestwood, TN

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

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Forestwood, TN

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

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Forestwood, 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 month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Forestwood, TN

Average sunshine days in September - Forestwood, TN
  • Average sunshine days in September: 20.5 days

The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).

Average UV index in September
Forestwood, TN

Average UV index in September - Forestwood, 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).

Average cloud cover in September
Forestwood, TN

Average cloud cover in September - Forestwood, TN
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September
Forestwood, TN

Average visibility in September - Forestwood, TN
  • 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).

Forestwood, Tennessee, USA

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