September weather forecast
Brinn, AL

Share

Weather in September

September, the first month of the autumn in Brinn, is still a warm month, with an average temperature fluctuating between 64°F (17.8°C) and 83.7°F (28.7°C).

Temperature

Brinn observes a minor difference in average high-temperatures between August's 88.9°F (31.6°C) and September's 83.7°F (28.7°C). Brinn witnesses a consistent average low-temperature of 64°F (17.8°C) throughout September.

Heat index

The average heat index in September is evaluated at a hot 91.4°F (33°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

In Brinn, in September, it is raining for 14 days, with typically 2.68" (68mm) of accumulated precipitation. In Brinn, during the entire year, the rain falls for 174.6 days and collects up to 42.8" (1087mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:16 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:36 pm CDT.

Sunshine

In Brinn, the average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. It's recommended to limit sun exposure when its radiation is at its peak during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

Brinn in September has an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 64°F (17.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in September is evaluated at 91.4°F (33°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How much does it rain in September?

In Brinn, in September, it is raining for 14 days, with typically 2.68" (68mm) of accumulated precipitation.

When it does not snow?

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

What is the average length of the day in September?

In September, the average day length is 12h and 22min.

When are sunrise and sunset in September in Brinn?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:36 pm CDT.

How long on average sun shines in September?

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

What is the UV index reading in September?

In Brinn, Alabama, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe 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
Brinn, AL

Average temperature in September - Brinn, AL
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in September: 64°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (34°F).

Average pressure in September
Brinn, AL

Average pressure in September - Brinn, AL
  • 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 (29.97"Hg).

Average wind speed in September
Brinn, AL

Average wind speed in September - Brinn, AL
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in September
Brinn, AL

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

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

Average rainfall in September
Brinn, AL

Average rainfall in September - Brinn, AL
  • Average rainfall in September: 2.68"

The wettest month (with the highest rainfall) is December (4.45").
The driest month (with the least rainfall) is November (2.4").

Average rainfall days in September
Brinn, AL

Average rainfall days in September - Brinn, AL
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in September
Brinn, AL

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

The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Brinn, AL

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

The month with the highest number of snowfall days is February (2.1 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
Brinn, AL

Average daylight in September / Average sunshine in September - Brinn, AL
  • 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 0min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

Average sunshine days in September
Brinn, AL

Average sunshine days in September - Brinn, AL
  • Average sunshine days in September: 13.2 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is August (9.3 days).

Average UV index in September
Brinn, AL

Average UV index in September - Brinn, AL
  • Average UV index in September: 5

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

Average cloud cover in September
Brinn, AL

Average cloud cover in September - Brinn, AL
  • Average cloud cover in September: 30

The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 30).

Average visibility in September
Brinn, AL

Average visibility in September - Brinn, AL
  • 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).

Brinn, Alabama, USA

Weather forecast for your location

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