Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition from August to September sees average high-temperatures adjusting to a warm 81.7°F (27.6°C), from a not significantly different 86.9°F (30.5°C). September is noted for a mean low-temperature of 62.4°F (16.9°C).Heat index
In September, the heat index is appraised at a hot 86°F (30°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. 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 are largely significant for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 11.4 days and accumulates 1.38" (35mm) of precipitation.Snowfall
April through October are months without snowfall in Martin.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:27 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:39 pm CDT.
Sunshine
In Martin, the average sunshine in September is 9.5h.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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 during September translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Martin, TN
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (43.3°F).
- Average low temperature in September: 62.4°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 (30.4°F).
Average pressure in September
Martin, 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 (29.95"Hg).
Average wind speed in September
Martin, TN
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are January, February and April (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in September
Martin, TN
- Average humidity in September: 73%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Martin, TN
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is February (4.09").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in September
Martin, TN
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Martin, TN
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Martin, TN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (3.4 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
Martin, TN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Martin, TN
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in September
Martin, TN
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are February and December (UV index 2).
Average cloud cover in September
Martin, TN
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Martin, TN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Martin, Tennessee, USA
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