September weather forecast
Harbour Woods, TN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Harbour Woods, Tennessee, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 61.3°F (16.3°C).

Temperature

Entering September, the average high-temperature is recorded at a moderately hot 82.6°F (28.1°C), exhibiting a minimal shift from August's 87.8°F (31°C). Harbour Woods experiences an average low-temperature reading of 61.3°F (16.3°C) throughout September.

Heat index

The average heat index in September is evaluated at a tropical 89.6°F (32°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

The average relative humidity in September is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.9 days and typically collects 2.05" (52mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of the month, sunrise is at 7:13 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:25 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In Harbour Woods, Tennessee, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 5 in September translates into these instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

In Harbour Woods, in September, the average high-temperature is 82.6°F (28.1°C), and the average low-temperature is 61.3°F (16.3°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is evaluated at 89.6°F (32°C).

What is the average humidity in September?

In Harbour Woods, the average relative humidity in September is 75%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.9 days and typically collects 2.05" (52mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 11.9 days. Throughout September, 2.05" (52mm) of precipitation is accumulated.

When it does not snow?

In Harbour Woods, snow does not fall in May through October.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 7:13 am and sunset at 8:06 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 Harbour Woods have in September?

The average sunshine duration in September in Harbour Woods, Tennessee, is 8.5h.

What is the UV index intensity in September?

In Harbour Woods, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe 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
Harbour Woods, TN

Average temperature in September - Harbour Woods, TN
  • Average high temperature in September: 82.6°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.8°F).

  • Average low temperature in September: 61.3°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in September
Harbour Woods, TN

Average pressure in September - Harbour Woods, 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).

Average wind speed in September
Harbour Woods, TN

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

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in September
Harbour Woods, TN

Average humidity in September - Harbour Woods, TN
  • Average humidity in September: 75%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, August and October (74%).

Average rainfall in September
Harbour Woods, TN

Average rainfall in September - Harbour Woods, TN
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is February (3.62").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days in September
Harbour Woods, TN

Average rainfall days in September - Harbour Woods, TN
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
Harbour Woods, TN

Average snowfall in September - Harbour Woods, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Harbour Woods, TN

Average snowfall days in September - Harbour Woods, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Harbour Woods, TN

Average daylight in September / Average sunshine in September - Harbour Woods, 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 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Harbour Woods, TN

Average sunshine days in September - Harbour Woods, TN
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Harbour Woods, TN

Average UV index in September - Harbour Woods, 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 and December (UV index 2).

Average cloud cover in September
Harbour Woods, TN

Average cloud cover in September - Harbour Woods, TN
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in September
Harbour Woods, TN

Average visibility in September - Harbour Woods, TN
  • Average visibility in September: 6mi

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

Harbour Woods, Tennessee, USA

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