September weather forecast
Bayou Vista, TX

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Weather in September

September, the first month of the autumn in Bayou Vista, is also a moderately hot month, with an average temperature varying between 84.7°F (29.3°C) and 77.9°F (25.5°C).

Temperature

During September, Bayou Vista observes a subtle ascent to a warm 84.7°F (29.3°C) from August's 88.3°F (31.3°C) in the average high-temperature. Bayou Vista experiences a steady nighttime temperature of 77.9°F (25.5°C) throughout the month of September.

Heat index

Throughout September, the heat index is appraised at a hot 93.2°F (34°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

In Bayou Vista, the average relative humidity in September is 75%.

Rainfall

The month with the most rainfall is September, when the rain falls for 20.2 days and typically aggregates up to 7.13" (181mm) of precipitation.

Snowfall

February through November are months without snowfall in Bayou Vista.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September in Bayou Vista, Texas, sunrise is at 6:57 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:06 pm CDT.

Sunshine

In Bayou Vista, the average sunshine in September is 8.8h.

UV index

In Bayou Vista, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

How hot is it in Bayou Vista in September?

The high-temperature in Bayou Vista during September is 84.7°F (29.3°C) and the low-temperature is 77.9°F (25.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is appraised at 93.2°F (34°C).

What is the average humidity in September in Bayou Vista?

In September, the average relative humidity in Bayou Vista, Texas, is 75%.

What is the wettest month in Bayou Vista?

The month with the most rainfall is September, when the rain falls for 20.2 days and typically aggregates up to 7.13" (181mm) of precipitation.

How many days does it rain in September in Bayou Vista?

In September, the rain falls for 20.2 days. Throughout September, 7.13" (181mm) of precipitation is accumulated.

When it does not snow in Bayou Vista?

In Bayou Vista, snow does not fall in February through November.

How many hours of daylight does Bayou Vista have in September?

In September, the average day length in Bayou Vista, Texas, is 12h and 20min.

When are sunrise and sunset in September in Bayou Vista?

In September, on the first day of the month, sunrise is at 6:57 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:06 pm CDT.

How long on average sun shines in September in Bayou Vista?

The average sunshine duration in September is 8.8h.

What is the UV index intensity in September in Bayou Vista?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Bayou Vista, TX

Average temperature in September - Bayou Vista, TX
  • Average high temperature in September: 84.7°F

The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (59.9°F).

  • Average low temperature in September: 77.9°F

The month with the highest average low temperature is August (81.1°F).
The coldest month (with the lowest average low temperature) is January (50.7°F).

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Average pressure in September
Bayou Vista, TX

Average pressure in September - Bayou Vista, TX
  • Average pressure in September: 29.96"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
Bayou Vista, TX

Average wind speed in September - Bayou Vista, TX
  • Average wind speed in September: 9mph

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

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Average humidity in September
Bayou Vista, TX

Average humidity in September - Bayou Vista, TX
  • Average humidity in September: 75%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Bayou Vista, TX

Average rainfall in September - Bayou Vista, TX
  • Average rainfall in September: 7.13"

The wettest month (with the highest rainfall) is September (7.13").
The driest month (with the least rainfall) is February (1.73").

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Average rainfall days in September
Bayou Vista, TX

Average rainfall days in September - Bayou Vista, TX
  • Average rainfall days in September: 20.2 days

The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is November (12 days).

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Average snowfall in September
Bayou Vista, TX

Average snowfall in September - Bayou Vista, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Bayou Vista, TX

Average snowfall days in September - Bayou Vista, TX
  • Average snowfall days in September: 0 days

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

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Average daylight in September /
Average sunshine in September
Bayou Vista, TX

Average daylight in September / Average sunshine in September - Bayou Vista, 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: 8h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in September
Bayou Vista, TX

Average sunshine days in September - Bayou Vista, TX
  • Average sunshine days in September: 7.5 days

The month with the most sunshine days is January (16 days).
The month with the least sunshine days is August (6.7 days).

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Average UV index in September
Bayou Vista, TX

Average UV index in September - Bayou Vista, TX
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).

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Average cloud cover in September
Bayou Vista, TX

Average cloud cover in September - Bayou Vista, TX
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June, July, August and October (Cloud cover 27).

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Average visibility in September
Bayou Vista, TX

Average visibility in September - Bayou Vista, 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).

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Bayou Vista, Texas, USA

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