August weather forecastPort Arthur, TX
August
Weather in August
The last month of the summer, August, is another tropical month in Port Arthur, Texas, with temperature in the range of an average high of 91°F (32.8°C) and an average low of 78.3°F (25.7°C).Temperature
August, known for its average high temperature of 91°F (32.8°C) and an average low temperature of 78.3°F (25.7°C), is the warmest month.Heat index
The heat index value during August is calculated to be a blazing hot 113°F (45°C). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
In Port Arthur, the average relative humidity in August is 74%.Rainfall
August is the month with the most rainfall. Rain falls for 17.9 days and accumulates 2.09" (53mm) of precipitation.Snowfall
January through November are months without snowfall.Daylight
The average length of the day in August is 13h and 11min.On the first day of August in Port Arthur, sunrise is at 6:35 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 7:38 pm CDT.
Sunshine
August has the most sunshine of the year, with an average of 10.7h of sunshine.UV index
The months with the highest UV index in Port Arthur, Texas, are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: In August, a daily UV index of 7 turns into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Port Arthur, TX
- Average high temperature in August: 91°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in August: 78.3°F
The month with the highest average low temperature is July (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).
Average pressure in August
Port Arthur, TX
- Average pressure in August: 29.94"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 August
Port Arthur, TX
- Average wind speed in August: 7mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in August
Port Arthur, TX
- Average humidity in August: 74%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Port Arthur, TX
- Average rainfall in August: 2.09"
The wettest month (with the highest rainfall) is August (2.09").
The driest month (with the least rainfall) is April (0.43").
Average rainfall days in August
Port Arthur, TX
- Average rainfall days in August: 17.9 days
The month with the highest number of rainy days is August (17.9 days).
The months with the least rainy days are January and November (7.8 days).
Average snowfall in August
Port Arthur, TX
- Average snowfall in August: 0"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Port Arthur, TX
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Port Arthur, TX
- Average daylight in August: 13h and 12min
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 August: 10h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in August
Port Arthur, TX
- Average sunshine days in August: 8.8 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is August (8.8 days).
Average UV index in August
Port Arthur, TX
- Average UV index in August: 7
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 August
Port Arthur, TX
- Average cloud cover in August: 28
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 26).
Average visibility in August
Port Arthur, 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).
