Austin, TX weather in August
In August, Austin sees highs around 98°F and lows around 75°F: very hot, oppressively humid and mostly dry. Rain falls on about 5 days. It is one of the warmest months in Austin. Plan outdoor time for mornings and evenings.
- Normal high
- 98°F
- Normal low
- 75°F
- Wet days
- 5
- 2.7 in total
- Muggy days
- 27
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 99°F | 95°F |
| Normal low | 76°F | 74°F |
| Chance of a wet day | 14% | 21% |
| Sunrise / sunset | 6:49 am / 8:25 pm | 7:07 am / 7:55 pm |
| Daylight | 13.6 h | 12.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical August day
- 6 am75°Fdew point 69°F
- 9 am83°Fdew point 69°F
- Noon91°Fdew point 66°F
- 3 pm94°Fdew point 64°F
- 6 pm92°Fdew point 64°F
- 9 pm84°Fdew point 66°F
NOAA hourly normals (local standard time) from Robert Gray AAF (56 mi away); average wind 8 mph; clear or few clouds in 49% of daytime hours, mostly cloudy or overcast in 31%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more29 of 31
- Muggy daysdaily mean dew point 65°F or more27 of 31
- Wet daysat least 0.01 in of rain or melted snow5 of 31
- Notable rainat least 0.10 in3 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 2.7 in; a dry August brings about 0.4 in and a wet one about 2.8 in (25th and 75th percentiles). About 1 day brings half an inch or more, and about 1 an inch or more.
How August varies from year to year
- Warmest August, 1991-20202011: average high 105°F
- Coolest August1997: average high 93°F
- Wettest August2017: 10.4 in
- Driest August2010: no measurable precipitation
- Highest reading112°F (August 28, 2011)
- Lowest reading62°F (August 13, 2004)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 97°F | 98°F | 91°F |
| Normal low | 75°F | 75°F | 70°F |
| Wet days | 5 | 5 | 7 |
| Comfortable days | 0 | 0 | 1 |
| Daylight | 13.9 h | 13.2 h | 12.3 h |
Highs change by +1°F from July and -7°F into September.
Nearby alternatives in August
- Cooler: League City, TX167 mi · high 92°F · 10 wet days
How Austin ranks in August
- Normal high20th warmest of 378 cities; 4th of 38 in Texas
- Wet days91st driest of 378
- Comfortable days315th most of 341
What to pack for Austin in August
- Light, breathable clothing – highs near 98°F and about 27 muggy days
Heating and cooling
August has 0 heating degree days and 665 cooling degree days (base 65°F), 14% of the year's total heating and cooling demand.
Questions
How hot is Austin in August?
The normal high is 98°F and the normal low is 75°F. From 1991 to 2020 the hottest August reading was 112°F (August 28, 2011).
Does it rain a lot in Austin in August?
About 5 days in August have at least 0.01 in of precipitation, and the normal total is 2.7 in. The wettest August in 1991-2020 was in 2017 (10.4 in); the driest was in 2010, with no measurable precipitation.
Is August a good time to visit Austin?
August ranks 12th of 12 months on our comfort score for Austin (34 out of 100). It has almost no comfortable days and about 29 days at 90°F or hotter. The best months are February, March and November.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Austin-Camp Mabry (USW00013958), 3.9 mi NNW of the city center, 670 ft (183 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Robert Gray AAF (USW00003902), 56 mi N of the city center, 1,015 ft (528 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Austin-Camp Mabry (722544-13958), 3.9 mi NNW of the city center, 670 ft (183 ft higher than the city). Hourly observations, 1991-2020.