August weather forecastLaguna Vista, TX
August
Weather in August
The last month of the summer, August, is also a hot month in Laguna Vista, Texas, with an average temperature fluctuating between 90.9°F (32.7°C) and 80.8°F (27.1°C).Temperature
In Laguna Vista, August is the warmest month, with temperatures averaging a high of 90.9°F (32.7°C) and a low of 80.8°F (27.1°C).Heat index
August's mean heat index is estimated at a blisteringly hot 109.4°F (43°C). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. 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
The average relative humidity in August in Laguna Vista is 71%.Rainfall
In Laguna Vista, in August, it is raining for 9.4 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, in Laguna Vista, there are 121.5 rainfall days, and 13.7" (348mm) of precipitation is accumulated.Snowfall
In Laguna Vista, snow does not fall in January, March through December.Ocean temperature
With an average ocean temperature of 85.1°F (29.5°C), August is the month with the warmest seawater.Note: Water surface temperatures from 77°F (25°C) to 84.2°F (29°C) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.
Daylight
The average length of the day in August in Laguna Vista, Texas, is 13h and 2min.On the first day of August, sunrise is at 6:55 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 7:49 pm CDT.
Sunshine
In August, the average sunshine is 10.3h.UV index
The months with the highest UV index in Laguna Vista, Texas, are April through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 7 in August translates into the following instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Laguna Vista, TX
- Average high temperature in August: 90.9°F
The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is January (67.6°F).
- Average low temperature in August: 80.8°F
The month with the highest average low temperature is August (80.8°F).
The coldest month (with the lowest average low temperature) is January (57.7°F).
Average pressure in August
Laguna Vista, TX
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).
Average wind speed in August
Laguna Vista, TX
- Average wind speed in August: 10.9mph
The windiest months (with the highest average wind speed) are March and April (13.2mph).
The calmest month (with the lowest average wind speed) is September (9.9mph).
Average humidity in August
Laguna Vista, TX
- Average humidity in August: 71%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).
Average rainfall in August
Laguna Vista, TX
- Average rainfall in August: 0.98"
The wettest month (with the highest rainfall) is September (2.36").
The driest month (with the least rainfall) is April (0.39").
Average rainfall days in August
Laguna Vista, TX
- Average rainfall days in August: 9.4 days
The month with the highest number of rainy days is September (16.6 days).
The month with the least rainy days is February (7.7 days).
Average snowfall days in August
Laguna Vista, TX
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in August
Laguna Vista, TX
- Average sea temperature in August: 85.1°F
The best month for swimming (with the highest average sea temperature) is August (85.1°F).
The coldest month (with the lowest average sea temperature) is February (66.7°F).
Average daylight in August /
Average sunshine in August
Laguna Vista, TX
- Average daylight in August: 13h and 0min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in August: 10h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in August
Laguna Vista, TX
- Average sunshine days in August: 17.7 days
The month with the most sunshine days is March (21.7 days).
The month with the least sunshine days is September (10.2 days).
Average UV index in August
Laguna Vista, TX
- Average UV index in August: 7
The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in August
Laguna Vista, TX
- Average cloud cover in August: 19
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in August
Laguna Vista, TX
- Average visibility in August: 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).





