September weather forecast
Bethany, LA

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Weather in September

The first month of the autumn, September, is also a hot month in Bethany, Louisiana, with an average temperature varying between 88.9°F (31.6°C) and 67.8°F (19.9°C).

Temperature

September brings a minor shift in the average high-temperature, adjusting from a sweltering 95.2°F (35.1°C) in August to a tropical 88.9°F (31.6°C). Throughout the month of September, Bethany expects an average low of 67.8°F (19.9°C).

Heat index

During September, the heat index is evaluated at a fiery hot 102.2°F (39°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In September, the average relative humidity in Bethany is 69%.

Rainfall

In Bethany, in September, during 14.5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, there are 161.5 rainfall days, and 39.13" (994mm) of precipitation is accumulated.

Snowfall

January through March, September, November and December are months with snowfall in Bethany. September is the first month it typically snows in Bethany, Louisiana. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Bethany, during the entire year, snow falls for 3.4 days and aggregates up to 1.61" (41mm) of snow.

Daylight

In Bethany, Louisiana, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:51 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:10 am and sunset at 7:01 pm CDT.

Sunshine

In Bethany, Louisiana, the average sunshine in September is 9.4h.

UV index

In September, the average daily maximum UV index in Bethany is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

Is it hot in Bethany during September?

An average high-temperature, in September, in Bethany, is 88.9°F (31.6°C) and the average low-temperature is 67.8°F (19.9°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 102.2°F (39°C).

What is the average humidity in September in Bethany?

The average relative humidity in September in Bethany, Louisiana, is 69%.

How much does it rain in Bethany in September?

In Bethany, Louisiana, in September, during 14.5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

When does it start to snow in Bethany?

September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in September in Bethany?

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

What time are sunrise and sunset in September in Bethany?

On the first day of September, sunrise is at 6:51 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 7:01 pm CDT.

How long on average sun shines in September in Bethany?

In September, the average sunshine duration is 9.4h.

What is the UV index reading in September in Bethany?

In September, the average daily maximum UV index in Bethany, Louisiana, is 6. A UV Index reading of 6 to 7 represents a high health 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
Bethany, LA

Average temperature in September - Bethany, LA
  • Average high temperature in September: 88.9°F

The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (54.3°F).

  • Average low temperature in September: 67.8°F

The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

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Average pressure in September
Bethany, LA

Average pressure in September - Bethany, LA
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Bethany, LA

Average wind speed in September - Bethany, LA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).

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Average humidity in September
Bethany, LA

Average humidity in September - Bethany, LA
  • Average humidity in September: 69%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (67%).

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Average rainfall in September
Bethany, LA

Average rainfall in September - Bethany, LA
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is July (2.52").

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Average rainfall days in September
Bethany, LA

Average rainfall days in September - Bethany, LA
  • Average rainfall days in September: 14.5 days

The months with the highest number of rainy days are March and August (15.8 days).
The month with the least rainy days is October (9.9 days).

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Average snowfall in September
Bethany, LA

Average snowfall in September - Bethany, LA
  • Average snowfall in September: 0.04"

The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August and October (0").

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Average snowfall days in September
Bethany, LA

Average snowfall days in September - Bethany, LA
  • Average snowfall days in September: 0.1 days

The months with the highest number of snowfall days are January and February (1.1 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

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Average daylight in September /
Average sunshine in September
Bethany, LA

Average daylight in September / Average sunshine in September - Bethany, LA
  • 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: 9h and 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in September
Bethany, LA

Average sunshine days in September - Bethany, LA
  • Average sunshine days in September: 13.3 days

The month with the most sunshine days is October (19.2 days).
The months with the least sunshine days are February and June (12.8 days).

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Average UV index in September
Bethany, LA

Average UV index in September - Bethany, LA
  • Average UV index in September: 6

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

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Average cloud cover in September
Bethany, LA

Average cloud cover in September - Bethany, LA
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 29).

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Average visibility in September
Bethany, LA

Average visibility in September - Bethany, LA
  • Average visibility in September: 6mi

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

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Bethany, Louisiana, USA

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