Austin weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Fair
Best time to visit: October – April
What is the weather like in Austin in August?
In August, Austin is very hot: daytime highs average 35 °C, and even at night it stays warm at around 25 °C. The sun shines for around 9 hours a day. Rain falls on about 6 days, adding up to 59 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a so-so month for a holiday in Austin.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 46 | 44 | 55 |
| Day | 35° | 35° | 32° |
| Night | 25° | 25° | 22° |
| Sun | 8 h | 9 h | 7 h |
| Rain days | 6 | 6 | 7 |
More details for August
- Daylight
- 13 h 17 min06:58 – 20:14
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 28 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 45 %on averageAll months
- Hot days
- 29 days30 °C or moreAll months
- Time zone
- UTC−5America/Chicago
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %92 %
- Few rainy daysweight 30 %85 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
Austin in August: quick answers
Is Austin hot in August?
Yes. In August, Austin is very hot: daytime highs average 35 °C and nights stay around 25 °C. On about 29 days the thermometer climbs to 30 °C or more.
Does it rain much in Austin in August?
Rain falls on about 6 days, adding up to 59 mm.
Austin month by month
The whole year in AustinAll destinations: USAWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences