August weather forecast
Austin, TX

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The beautiful Lady Bird Lake passing through the city skyscrapers of Austin city, Texas
The beautiful Lady Bird Lake passing through the city skyscrapers of Austin city, Texas

Weather in August

August sees a slight cooling down from the intense heat of July. Even though temperatures are still high, the humidity levels show a gradual decrease. This month amalgamates characteristic elements of the Austin summer, justifying its reputation for featuring the best weather of the season. Remaining hot and less humid, August paves the way for the moderately warm and increasingly rainy September.

Temperature

In Austin, the peak temperatures are generally noted in August, averaging a high of 96.4°F (35.8°C) and a low of 75.4°F (24.1°C).

Heat index

The heat index for August is appraised at a burning hot 116.6°F (47°C). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

August is the least humid month, with an average relative humidity of 59%.

Rainfall

In Austin, Texas, in August, during 10.8 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, in Austin, there are 142.7 rainfall days, and 21.5" (546mm) of precipitation is accumulated.

Snowfall

In Austin, Texas, snow does not fall in March through December.

Daylight

In Austin, the average length of the day in August is 13h and 13min.
On the first day of the month, sunrise is at 6:50 am and sunset at 8:24 pm. On the last day of August, sunrise is at 7:07 am and sunset at 7:54 pm CDT.

Sunshine

The months with the most sunshine are July and August, with an average of 10.3h of sunshine.

UV index

The months with the highest UV index in Austin are June through August, 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 the ordinary person.
Note: An average maximum UV index of 7 in August leads to these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What is the warmest month in Austin?

August, known for its average high temperature of 96.4°F (35.8°C) and an average low temperature of 75.4°F (24.1°C), is the warmest month in Austin.

How hot is it in Austin in August?

An average high-temperature, in August, in Austin, is 96.4°F (35.8°C) and the average low-temperature is 75.4°F (24.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is appraised at 116.6°F (47°C).

What is the least humid month in Austin?

The least humid month in Austin is August, with an average relative humidity of 59%.

What is the average humidity in August in Austin?

In Austin, Texas, the average relative humidity in August is 59%.

How much does it rain in Austin in August?

In Austin, Texas, in August, it is raining for 10.8 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow in Austin?

In Austin, snow does not fall in March through December.

What is the average length of the day in August in Austin?

In August, the average day length in Austin is 13h and 13min.

When is the sunrise / sunset in August in Austin?

On the first day of August in Austin, Texas, sunrise is at 6:50 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 7:54 pm CDT.

What are the months with the most sunshine in Austin?

The months with the most sunshine in Austin, Texas, are July and August, with an average of 10.3h of sunshine.

How long on average sun shines in August in Austin?

In August, the average sunshine duration in Austin, Texas, is 10.3h.

What is the month with the highest UV index in Austin?

June through August, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index intensity in August in Austin?

In August, the average daily maximum UV index in Austin is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.
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
Austin, TX

Average temperature in August - Austin, TX
  • Average high temperature in August: 96.4°F

The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (59.4°F).

  • Average low temperature in August: 75.4°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (42.6°F).

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Average pressure in August
Austin, TX

Average pressure in August - Austin, TX
  • Average pressure in August: 29.93"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in August
Austin, TX

Average wind speed in August - Austin, TX
  • Average wind speed in August: 7mph

The windiest month (with the highest average wind speed) is March (9.2mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).

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Average humidity in August
Austin, TX

Average humidity in August - Austin, TX
  • Average humidity in August: 59%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (59%).

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Average rainfall in August
Austin, TX

Average rainfall in August - Austin, TX
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.91").

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Average rainfall days in August
Austin, TX

Average rainfall days in August - Austin, TX
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (8.2 days).

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Average snowfall in August
Austin, TX

Average snowfall in August - Austin, TX
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.4").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Austin, TX

Average snowfall days in August - Austin, TX
  • Average snowfall days in August: 0 days

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

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Average daylight in August /
Average sunshine in August
Austin, TX

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

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in August: 10h and 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in August
Austin, TX

Average sunshine days in August - Austin, TX
  • Average sunshine days in August: 16.8 days

The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in August
Austin, TX

Average UV index in August - Austin, TX
  • Average UV index in August: 7

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in August
Austin, TX

Average cloud cover in August - Austin, TX
  • Average cloud cover in August: 24

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in August
Austin, TX

Average visibility in August - Austin, 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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Austin, Texas, USA

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