September weather forecast
Martins Mills, TN

Share

Weather in September

The first month of the autumn, September, is still a warm month in Martins Mills, Tennessee, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 63°F (17.2°C).

Temperature

September signifies a gentle decline in Martins Mills's average high-temperature, easing from a tropical 88.3°F (31.3°C) in August to a warm 82.6°F (28.1°C). During September, Martins Mills records a consistent average nighttime temperature of 63°F (17.2°C).

Heat index

The heat index value for September is estimated at a tropical 89.6°F (32°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In September, the average relative humidity is 75%.

Rainfall

The months with the least rainfall are September and November Rain falls for 14.3 days and accumulates 2.52" (64mm) of rain.

Snowfall

In Martins Mills, Tennessee, snow does not fall in May through September.

Daylight

In Martins Mills, the average length of the day in September is 12h and 23min.
On the first day of September in Martins Mills, sunrise is at 6:24 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:36 pm CDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In Martins Mills, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 5 during September translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

How hot is September?

During September, Martins Mills experiences an average high-temperature of 82.6°F (28.1°C) and a low-temperature of 63°F (17.2°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September in Martins Mills is 75%.

What is the driest month?

September and November are months with the least rain when the rain falls for 14.3 days and typically aggregates up to 2.52" (64mm) of rain.

How much does it rain in September?

In Martins Mills, during September, the rain falls for 14.3 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Martins Mills?

In Martins Mills, snow does not fall in May through September.

Does it snow in September?

In Martins Mills, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Martins Mills have in September?

In September, the average day length in Martins Mills is 12h and 23min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:24 am and sunset at 7:18 pm. On the last day of the month, in Martins Mills, sunrise is at 6:46 am and sunset at 6:36 pm CDT.

How long on average sun shines in September in Martins Mills?

The average sunshine duration in September is 8.9h.

What is the UV index reading in September?

In Martins Mills, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Martins Mills, TN

Average temperature in September - Martins Mills, 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 (45.7°F).

  • Average low temperature in September: 63°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (32°F).

Average pressure in September
Martins Mills, TN

Average pressure in September - Martins Mills, TN
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Martins Mills, TN

Average wind speed in September - Martins Mills, TN
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

Average humidity in September
Martins Mills, TN

Average humidity in September - Martins Mills, TN
  • Average humidity in September: 75%

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Martins Mills, TN

Average rainfall in September - Martins Mills, TN
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is February (4.84").
The driest months (with the least rainfall) are September and November (2.52").

Average rainfall days in September
Martins Mills, TN

Average rainfall days in September - Martins Mills, TN
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (10.4 days).

Average snowfall in September
Martins Mills, TN

Average snowfall in September - Martins Mills, 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 and September (0").

Average snowfall days in September
Martins Mills, TN

Average snowfall days in September - Martins Mills, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.4 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
Martins Mills, TN

Average daylight in September / Average sunshine in September - Martins Mills, 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 5min

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 36min).

Average sunshine days in September
Martins Mills, TN

Average sunshine days in September - Martins Mills, TN
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in September
Martins Mills, TN

Average UV index in September - Martins Mills, TN
  • Average UV index in September: 5

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

Average cloud cover in September
Martins Mills, TN

Average cloud cover in September - Martins Mills, 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 30).

Average visibility in September
Martins Mills, TN

Average visibility in September - Martins Mills, TN
  • Average visibility in September: 6mi

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

Martins Mills, Tennessee, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location