September weather forecast
Bastrop, LA

Weather in September

September, the first month of the autumn, in Bastrop, is still a tropical month, with average temperature ranging between min 67.5°F (19.7°C) and max 87.1°F (30.6°C).

Temperature

In Bastrop, the average high-temperature is essentially the same as in August - a still hot 87.1°F (30.6°C). In September, in Bastrop, the average low-temperature is 67.5°F (19.7°C).

Heat index

The average heat index is evaluated at a sweltering 98.2°F (36.8°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, pregnancy, metabolic differences). 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 particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In September, the average relative humidity is 71%.

Rainfall

The month with the least rainfall is September when the rain falls for 12.2 days and typically collects 1.54" (39mm) of precipitation.

Snowfall

April through December are months without snowfall.

Daylight

The average length of the day in September is 12.4h.

Sunshine

In September, the average sunshine is 10h.

UV index

The average daily maximum UV index in Bastrop is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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.
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FAQ

What is the temperature in September in Bastrop?

In Bastrop, in September, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 67.5°F (19.7°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in September is evaluated at 98.2°F (36.8°C).

What is the average humidity in September in Bastrop?

In Bastrop, the average relative humidity in September is 71%.

What is the driest month in Bastrop?

The month with the least rainfall in Bastrop is September when the rain falls for 12.2 days and typically collects 1.54" (39mm) of precipitation.

How many days does it rain in September in Bastrop?

In Bastrop, Louisiana, during September, the rain falls for 12.2 days and regularly aggregates up to 1.54" (39mm) of precipitation.

When it does not snow in Bastrop?

In Bastrop, Louisiana, snow does not fall in April through December.

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

In September, the average length of the day in Bastrop, Louisiana, is 12.4h.

How many hours of sunshine does Bastrop have in September?

The average sunshine in September in Bastrop is 10h.

What is the UV index reading in September in Bastrop?

The average daily maximum UV index in September in Bastrop, Louisiana, is 6. A UV Index estimate of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.

Average temperature in September
Bastrop, LA

Average temperature in September - Bastrop, LA
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (53.4°F).

  • Average low temperature in September: 67.5°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

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Average pressure in September
Bastrop, LA

Average pressure in September - Bastrop, LA
  • Average pressure in September: 29.99"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.95").

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Average wind speed in September
Bastrop, LA

Average wind speed in September - Bastrop, LA
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest months (with the lowest average wind speed) are August and September (5.3mph).

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Average humidity in September
Bastrop, LA

Average humidity in September - Bastrop, LA
  • Average humidity in September: 71%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Bastrop, LA

Average rainfall in September - Bastrop, LA
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in September
Bastrop, LA

Average rainfall days in September - Bastrop, LA
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in September
Bastrop, LA

Average snowfall in September - Bastrop, LA
  • Average snowfall in September: 0"

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

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Average snowfall days in September
Bastrop, LA

Average snowfall days in September - Bastrop, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.7 days).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Bastrop, LA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 10h

The month with the most sunshine is June (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in September
Bastrop, LA

Average sunshine days in September - Bastrop, LA
  • Average sunshine days in September: 16 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is February (13.1 days).

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Average UV index in September
Bastrop, LA

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

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

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Average cloud cover in September
Bastrop, LA

Average cloud cover in September - Bastrop, LA
  • 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).

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Average visibility in September
Bastrop, LA

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

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

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