September weather forecast
Grace, AL

Share

Weather in September

The first month of the autumn, September, is also a hot month in Grace, Alabama, with an average temperature fluctuating between 87.1°F (30.6°C) and 67.8°F (19.9°C).

Temperature

The shift into September reveals an average high-temperature of a still tropical 87.1°F (30.6°C), closely mirroring August's climate. Grace experiences an average low-temperature reading of 67.8°F (19.9°C) throughout September.

Heat index

September's average heat index is evaluated at a torrid 100.4°F (38°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in September is 74%.

Rainfall

In September, the rain falls for 15.4 days. Throughout September, 2.28" (58mm) of precipitation is accumulated. In Grace, Alabama, during the entire year, the rain falls for 171.8 days and collects up to 35.16" (893mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In Grace, the average length of the day in September is 12h and 21min.
On the first day of September, sunrise is at 6:23 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:33 pm CDT.

Sunshine

In September, the average sunshine in Grace is 8.9h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Grace in September?

An average high-temperature, in September, in Grace, is 87.1°F (30.6°C) and the average low-temperature is 67.8°F (19.9°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 100.4°F (38°C).

What is the average humidity in September?

The average relative humidity in September in Grace is 74%.

How many days does it rain in September?

In Grace, in September, during 15.4 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When it does not snow?

In Grace, snow does not fall in April through November.

How many hours of daylight does Grace have in September?

The average day length in September is 12h and 21min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:23 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:33 pm CDT.

How long on average sun shines in September in Grace?

The average sunshine duration in September is 8.9h.

What is the UV index intensity in September in Grace?

In Grace, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Grace, AL

Average temperature in September - Grace, AL
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (56.7°F).

  • Average low temperature in September: 67.8°F

The month with the highest average low temperature is August (72.1°F).
The coldest month (with the lowest average low temperature) is January (39°F).

Average pressure in September
Grace, AL

Average pressure in September - Grace, AL
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

Average wind speed in September
Grace, AL

Average wind speed in September - Grace, AL
  • Average wind speed in September: 5mph

The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in September
Grace, AL

Average humidity in September - Grace, AL
  • Average humidity in September: 74%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Grace, AL

Average rainfall in September - Grace, AL
  • Average rainfall in September: 2.28"

The wettest months (with the highest rainfall) are August and December (3.94").
The driest month (with the least rainfall) is November (1.93").

Average rainfall days in September
Grace, AL

Average rainfall days in September - Grace, AL
  • Average rainfall days in September: 15.4 days

The month with the highest number of rainy days is July (23 days).
The month with the least rainy days is November (7.3 days).

Average snowfall in September
Grace, AL

Average snowfall in September - Grace, AL
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Grace, AL

Average snowfall days in September - Grace, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.4 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
Grace, AL

Average daylight in September / Average sunshine in September - Grace, AL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

Average sunshine days in September
Grace, AL

Average sunshine days in September - Grace, AL
  • Average sunshine days in September: 12.9 days

The months with the most sunshine days are October and November (21 days).
The month with the least sunshine days is July (6.5 days).

Average UV index in September
Grace, AL

Average UV index in September - Grace, AL
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in September
Grace, AL

Average cloud cover in September - Grace, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Grace, AL

Average visibility in September - Grace, AL
  • Average visibility in September: 5mi

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

Grace, Alabama, USA

Weather forecast for your location

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