Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Bayou Vista's average high-temperature in September sits at a warm 84.7°F (29.3°C), showing little difference from the previous month. September registers an average low temperature of 77.9°F (25.5°C), subtly lower than the daytime maximum.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.Metrics for the heat index primarily focus on shaded spots and light wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
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.Daylight
In Bayou Vista, Texas, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:57 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:06 pm CDT.
Sunshine
The average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
What is the wettest month?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Bayou Vista have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Bayou Vista have in September?
How high is the UV index in September in Bayou Vista?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Bayou Vista, Texas, USA
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