August weather forecast
Port Aransas, TX

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Weather in August

August, being the heart of summer in Port Aransas, hits the highest temperature recorded in the year at 86.7°F (30.4°C). With the sea temperature concurrently at its highest, surfing and other water activities claim popularity during this period. Despite high temperatures, locals and visitors continue enjoying the sandy beaches, pleasant sea breezes, and beautiful sunsets. It has been observed that the cloud cover slightly reduces compared to July, causing an increase in overall sunshine. While sporadic thunderstorms or showers may occur, August remains an ideal period for vacationing in Port Aransas.

Temperature

August stands out as Port Aransas's warmest month, with temperatures ranging between an average high of 86.7°F (30.4°C) and a low of 82°F (27.8°C).

Heat index

The heat index for August is calculated to be a very hot 100.4°F (38°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Port Aransas, the average relative humidity in August is 76%.

Rainfall

In Port Aransas, in August, during 11 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, there are 126.5 rainfall days, and 14.57" (370mm) of precipitation is accumulated.

Snowfall

In Port Aransas, snow does not fall in January, March through December.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 86.2°F (30.1°C).
Note: The water temperature above 86°F (30°C) is arguably regarded as unpleasant. The primary purpose of entering the water - cooling down from sunshine and high temperatures - is lost.

Daylight

In August, the average length of the day is 13h and 6min.
On the first day of August in Port Aransas, sunrise is at 6:51 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 7:49 pm CDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Port Aransas. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, a regular UV index of 7 translates into these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
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Frequently asked questions

What part of the year is the hottest in Port Aransas?

Port Aransas's August weather, marked by an average high temperature of 86.7°F (30.4°C) and an average low temperature of 82°F (27.8°C), is the warmest in the year.

How hot does it get in Port Aransas in August?

In Port Aransas, in August, the average high-temperature is 86.7°F (30.4°C), and the average low-temperature is 82°F (27.8°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in August is calculated to be 100.4°F (38°C).

What is the average humidity in August in Port Aransas?

In August, the average relative humidity in Port Aransas, Texas, is 76%.

How many days does it rain in August in Port Aransas?

In August, in Port Aransas, Texas, the rain falls for 11 days. Throughout August, 1.22" (31mm) of precipitation is accumulated.

When it does not snow in Port Aransas?

In Port Aransas, Texas, snow does not fall in January, March through December.

What is the month with the warmest ocean in Port Aransas?

The month with the warmest seawater in Port Aransas is August, with an average ocean temperature of 86.2°F (30.1°C).

What is the ocean temperature in August in Port Aransas?

In August, the average ocean temperature in Port Aransas is 86.2°F (30.1°C). For swimming, other intense water activities, temperature above 86°F (30°C) is arguably unpleasant, as the water cooling effect is missing.

How many hours of daylight does Port Aransas have in August?

In Port Aransas, the average day length in August is 13h and 6min.

When are sunrise and sunset in August in Port Aransas?

On the first day of August in Port Aransas, Texas, sunrise is at 6:51 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 7:49 pm CDT.

How long on average sun shines in August in Port Aransas?

In August, the average sunshine duration is 10.4h.

When is the highest UV index in Port Aransas?

The months with the highest UV index in Port Aransas are May through September, with an average maximum UV index of 7.

What is the UV index intensity in August in Port Aransas?

In August, the average daily maximum UV index in Port Aransas, Texas, is 7. A UV Index estimate of 6 to 7 represents 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 August
Port Aransas, TX

Average temperature in August - Port Aransas, TX
  • Average high temperature in August: 86.7°F

The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is January (62.6°F).

  • Average low temperature in August: 82°F

The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (54.9°F).

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Average pressure in August
Port Aransas, TX

Average pressure in August - Port Aransas, TX
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in August
Port Aransas, TX

Average wind speed in August - Port Aransas, TX
  • Average wind speed in August: 11.8mph

The windiest months (with the highest average wind speed) are April and May (14.2mph).
The calmest month (with the lowest average wind speed) is September (11.3mph).

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Average humidity in August
Port Aransas, TX

Average humidity in August - Port Aransas, TX
  • Average humidity in August: 76%

The months with the highest relative humidity are March and May (81%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in August
Port Aransas, TX

Average rainfall in August - Port Aransas, TX
  • Average rainfall in August: 1.22"

The wettest month (with the highest rainfall) is September (2.99").
The driest months (with the least rainfall) are February and March (0.51").

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Average rainfall days in August
Port Aransas, TX

Average rainfall days in August - Port Aransas, TX
  • Average rainfall days in August: 11 days

The month with the highest number of rainy days is September (17.8 days).
The month with the least rainy days is February (7.8 days).

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Average snowfall in August
Port Aransas, TX

Average snowfall in August - Port Aransas, TX
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Port Aransas, TX

Average snowfall days in August - Port Aransas, TX
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, October, November and December (0 days).

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Average sea temperature in August
Port Aransas, TX

Average sea temperature in August - Port Aransas, TX
  • Average sea temperature in August: 86.1°F

The best month for swimming (with the highest average sea temperature) is August (86.1°F).
The coldest month (with the lowest average sea temperature) is February (61.3°F).

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Average daylight in August /
Average sunshine in August
Port Aransas, TX

Average daylight in August / Average sunshine in August - Port Aransas, TX
  • Average daylight in August: 13h and 1min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in August
Port Aransas, TX

Average sunshine days in August - Port Aransas, TX
  • Average sunshine days in August: 17.5 days

The month with the most sunshine days is March (20.5 days).
The month with the least sunshine days is September (10.3 days).

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Average UV index in August
Port Aransas, TX

Average UV index in August - Port Aransas, TX
  • Average UV index in August: 7

The months with the highest UV index are May, June, July, August and September (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 August
Port Aransas, TX

Average cloud cover in August - Port Aransas, TX
  • Average cloud cover in August: 22

The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in August
Port Aransas, TX

Average visibility in August - Port Aransas, 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).

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Port Aransas, Texas, USA

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