September weather forecast
Guys, TN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Guys, Tennessee, with temperature in the range of an average low of 63.7°F (17.6°C) and an average high of 84°F (28.9°C).

Temperature

As Guys transitions from August to September, the average high-temperatures adjust to a warm 84°F (28.9°C), nearly the same as the previous 89.2°F (31.8°C). An average low-temperature of 63.7°F (17.6°C) is noted during the month of September.

Heat index

The heat index value for September is estimated at a tropical 91.4°F (33°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

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

Rainfall

September is the month with the least rainfall in Guys. Rain falls for 13.5 days and accumulates 2.01" (51mm) of precipitation.

Snowfall

In Guys, Tennessee, snow does not fall in April through October.

Daylight

In September, the average length of the day in Guys, Tennessee, is 12h and 23min.
On the first day of the month, sunrise is at 6:27 am and sunset at 7:20 pm. On the last day of September, in Guys, Tennessee, sunrise is at 6:48 am and sunset at 6:39 pm CDT.

Sunshine

In September, the average sunshine is 9h.

UV index

In Guys, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Guys in September?

The average high-temperature and low-temperature during September are 84°F (28.9°C) and 63.7°F (17.6°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 91.4°F (33°C).

What is the average humidity in September in Guys?

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

What is the driest month in Guys?

September is the month with the least rainfall in Guys, Tennessee. Rain falls for 13.5 days and accumulates 2.01" (51mm) of precipitation.

How many days does it rain in September in Guys?

In September, in Guys, the rain falls for 13.5 days. Throughout September, 2.01" (51mm) of precipitation is accumulated.

When it does not snow in Guys?

In Guys, snow does not fall in April through October.

How many hours of daylight does Guys have in September?

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

What time are sunrise and sunset in September in Guys?

In September, on the first day of the month, sunrise is at 6:27 am and sunset at 7:20 pm. On the last day of the month, in Guys, sunrise is at 6:48 am and sunset at 6:39 pm CDT.

How long on average sun shines in September in Guys?

In Guys, the average sunshine duration in September is 9h.

What is the UV index intensity in September in Guys?

In September, the average daily maximum UV index in Guys 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
Guys, TN

Average temperature in September - Guys, TN
  • Average high temperature in September: 84°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (47.5°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).

Average pressure in September
Guys, TN

Average pressure in September - Guys, TN
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Guys, TN

Average wind speed in September - Guys, TN
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in September
Guys, TN

Average humidity in September - Guys, TN
  • Average humidity in September: 74%

The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Guys, TN

Average rainfall in September - Guys, TN
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is February (4.69").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in September
Guys, TN

Average rainfall days in September - Guys, TN
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (10.2 days).

Average snowfall in September
Guys, TN

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

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Guys, TN

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

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Guys, 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: 9h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in September
Guys, TN

Average sunshine days in September - Guys, TN
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in September
Guys, TN

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

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Guys, TN

Average cloud cover in September - Guys, TN
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 30).

Average visibility in September
Guys, TN

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

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

Guys, Tennessee, USA

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