September weather forecast
Brittain, AR

Share

Weather in September

September, the first month of the autumn in Brittain, is also a moderately hot month, with an average temperature ranging between max 85.3°F (29.6°C) and min 64.9°F (18.3°C).

Temperature

September's arrival subtly correlates with a reduction in the average high-temperature, down from a tropical 91°F (32.8°C) in August to a warm 85.3°F (29.6°C). Brittain experiences an average nighttime temperature of 64.9°F (18.3°C) in the month of September.

Heat index

September's average heat index is evaluated at a very hot 95°F (35°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in September is 72%.

Rainfall

In September, the rain falls for 13 days. Throughout September, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 158.1 rainfall days, and 38.03" (966mm) of precipitation is accumulated.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September, sunrise is at 6:42 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:54 pm CDT.

Sunshine

The average sunshine in September is 9.5h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

The average high-temperature, in September, in Brittain, is 85.3°F (29.6°C), while the average low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 95°F (35°C).

What is the average humidity in September?

In Brittain, the average relative humidity in September is 72%.

How many days does it rain in September?

In Brittain, in September, during 13 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When it does not snow?

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

How many hours of daylight does Brittain have in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:42 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:54 pm CDT.

How many hours of sunshine does Brittain have in September?

In Brittain, the average sunshine duration in September is 9.5h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Brittain, AR

Average temperature in September - Brittain, AR
  • Average high temperature in September: 85.3°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (48.9°F).

  • Average low temperature in September: 64.9°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

Average pressure in September
Brittain, AR

Average pressure in September - Brittain, AR
  • 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 (29.94"Hg).

Average wind speed in September
Brittain, AR

Average wind speed in September - Brittain, AR
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are February, March and April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Brittain, AR

Average humidity in September - Brittain, AR
  • Average humidity in September: 72%

The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Brittain, AR

Average rainfall in September - Brittain, AR
  • Average rainfall in September: 2.68"

The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is January (2.52").

Average rainfall days in September
Brittain, AR

Average rainfall days in September - Brittain, AR
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in September
Brittain, AR

Average snowfall in September - Brittain, AR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Brittain, AR

Average snowfall days in September - Brittain, AR
  • 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 April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Brittain, AR

Average daylight in September / Average sunshine in September - Brittain, AR
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in September
Brittain, AR

Average sunshine days in September - Brittain, AR
  • Average sunshine days in September: 15.2 days

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

Average UV index in September
Brittain, AR

Average UV index in September - Brittain, AR
  • Average UV index in September: 6

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

Average cloud cover in September
Brittain, AR

Average cloud cover in September - Brittain, AR
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 26).

Average visibility in September
Brittain, AR

Average visibility in September - Brittain, AR
  • 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).

Brittain, Arkansas, USA

Weather forecast for your location

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