September weather forecast
Buenos Aires, TX

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Weather in September

The first month of the autumn, September, is still a hot month in Buenos Aires, Texas, with an average temperature varying between 70.2°F (21.2°C) and 87.1°F (30.6°C).

Temperature

A moderate decline in average high-temperatures is noted in September, moving from 93.6°F (34.2°C) in August to a still tropical 87.1°F (30.6°C). September's nights observe an average temperature of 70.2°F (21.2°C).

Heat index

The average heat index in September is evaluated at a hot 87.8°F (31°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

With an average relative humidity of 45%, September is the most humid month.

Rainfall

The month with the most rainfall is September, when the rain falls for 11.9 days and typically aggregates up to 1.18" (30mm) of precipitation.

Snowfall

February through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:32 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 7:40 pm CDT.

Sunshine

In Buenos Aires, Texas, the average sunshine in September is 9.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 6 in September translates into the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

The high-temperature during September is 87.1°F (30.6°C) and the low-temperature is 70.2°F (21.2°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the most humid month?

September is the most humid month, with an average relative humidity of 45%.

What is the average humidity in September?

In Buenos Aires, the average relative humidity in September is 45%.

What is the rainiest month in Buenos Aires?

The month with the most rainfall is September, when the rain falls for 11.9 days and typically aggregates up to 1.18" (30mm) of precipitation.

How many days does it rain in September?

In Buenos Aires, Texas, in September, it is raining for 11.9 days, with typically 1.18" (30mm) of accumulated precipitation.

When it does not snow?

February through November are months without snowfall.

What is the average length of the day in September?

In Buenos Aires, the average day length in September is 12h and 19min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:32 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 7:40 pm CDT.

How many hours of sunshine does Buenos Aires have in September?

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

What is the UV index reading in September?

In Buenos Aires, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from 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
Buenos Aires, TX

Average temperature in September - Buenos Aires, TX
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is June (96.3°F).
The month with the lowest average high temperature is January (61.9°F).

  • Average low temperature in September: 70.2°F

The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).

Average pressure in September
Buenos Aires, TX

Average pressure in September - Buenos Aires, TX
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in September
Buenos Aires, TX

Average wind speed in September - Buenos Aires, TX
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is December (5.4mph).

Average humidity in September
Buenos Aires, TX

Average humidity in September - Buenos Aires, TX
  • Average humidity in September: 45%

The month with the highest relative humidity is September (45%).
The month with the lowest relative humidity is April (23%).

Average rainfall in September
Buenos Aires, TX

Average rainfall in September - Buenos Aires, TX
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is September (1.18").
The driest month (with the least rainfall) is February (0.12").

Average rainfall days in September
Buenos Aires, TX

Average rainfall days in September - Buenos Aires, TX
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is July (13 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in September
Buenos Aires, TX

Average snowfall in September - Buenos Aires, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Buenos Aires, TX

Average snowfall days in September - Buenos Aires, TX
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Buenos Aires, TX

Average daylight in September / Average sunshine in September - Buenos Aires, TX
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 8h and 18min).

Average sunshine days in September
Buenos Aires, TX

Average sunshine days in September - Buenos Aires, TX
  • Average sunshine days in September: 13.2 days

The months with the most sunshine days are January and December (27.3 days).
The month with the least sunshine days is September (13.2 days).

Average UV index in September
Buenos Aires, TX

Average UV index in September - Buenos Aires, TX
  • Average UV index in September: 6

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

Average cloud cover in September
Buenos Aires, TX

Average cloud cover in September - Buenos Aires, TX
  • Average cloud cover in September: 20

The month with the most cloud cover is September (Cloud cover 20).
The months with the least cloud cover are May and June (Cloud cover 10).

Average visibility in September
Buenos Aires, TX

Average visibility in September - Buenos Aires, TX
  • 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).

Buenos Aires, Texas, USA

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