Austin, TX Climate & Monthly Averages
Austin has a humid subtropical climate. August is the hottest month, averaging 96° by day; January is the coldest at 61°.
Sunshine is a defining feature of Austin's climate
Austin records 120 wet days and 9.0 hours of daily sunshine in an average year. Temperatures follow a humid subtropical pattern, running 61°F (16°C) in January up to 96°F (36°C) in August.
How sun, temperature and rain fit together
At its warmest, in August, Austin runs to 96°F (36°C) in the afternoon and back to 78°F (25°C) by dawn. January sits at the other end of the year: 61°F (16°C) by day, 42°F (6°C) at night. Sunshine averages 9.0 hours a day over the year, peaking in July at 12.1 hours.
The wettest month is May (7.6 inches (194 mm) across 16 days) and the driest July. Average highs hold at or above 30°C for 4 months of the year, June through September being the unbroken run. Four of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is February through March.
Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 107°F (42°C) and the lowest daily minimum 4°F (-15°C).
More climate facts for Austin
- Hottest month: August - highs near 96°F (36°C)
- Coldest month: January - highs near 61°F (16°C)
- Decade extremes (2015-2024): 107°F (42°C) high · 4°F (-15°C) low
- Wettest month: May (16 rainy days) · Sunniest: July (12.1 h sun/day)
- Climate type: humid subtropical
- Annual swing: 20°C between the average warmest and coolest month · day to night: 10°C
- Months averaging 30°C or hotter: 4
- Average humidity: 68%
The most comfortable sunny-weather window
Best time to visit Austin
Aim for October to March if you get the choice: warm days, manageable rainfall and plenty of daylight line up, and highs average 69°F (21°C) against roughly 9 wet days a month. For the same question asked the other way round, see where else is warm in October.
What to pack
Pack for Austin with lightweight, breathable clothing and serious sun protection and a compact umbrella or rain shell. August nights average 78°F (25°C), so evenings rarely match the afternoons.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 61° | 42° | 9 | 2.9 in | 7.3 h/day | 10.4 h | 28% | 67% |
| February | 65° | 46° | 9 | 3.2 in | 6.9 h/day | 11.1 h | 33% | 69% |
| March | 73° | 54° | 10 | 3.3 in | 7.7 h/day | 11.9 h | 34% | 69% |
| April | 79° | 60° | 12 | 5.2 in | 8.7 h/day | 12.9 h | 41% | 69% |
| May | 85° | 68° | 16 | 7.6 in | 9.3 h/day | 13.7 h | 50% | 75% |
| June | 91° | 74° | 11 | 4.1 in | 11.3 h/day | 14.1 h | 37% | 71% |
| July | 95° | 77° | 8 | 2.5 in | 12.1 h/day | 13.9 h | 27% | 64% |
| August | 96° | 78° | 8 | 4.7 in | 11.5 h/day | 13.2 h | 27% | 62% |
| September | 90° | 73° | 9 | 4.1 in | 10.2 h/day | 12.3 h | 31% | 66% |
| October | 82° | 63° | 9 | 4.4 in | 9.0 h/day | 11.4 h | 28% | 63% |
| November | 70° | 53° | 9 | 3.3 in | 7.1 h/day | 10.6 h | 31% | 71% |
| December | 65° | 47° | 8 | 3.4 in | 6.6 h/day | 10.2 h | 27% | 71% |
Austin month by month
Each card shows the average high and low. The bar places that month between Austin's coldest night and warmest afternoon.
January
- Rain
- 9 days
- Sunshine
- 7.3 h
- Daylight
- 10.4 h
February
- Rain
- 9 days
- Sunshine
- 6.9 h
- Daylight
- 11.1 h
March
- Rain
- 10 days
- Sunshine
- 7.7 h
- Daylight
- 11.9 h
April
- Rain
- 12 days
- Sunshine
- 8.7 h
- Daylight
- 12.9 h
May
- Rain
- 16 days
- Sunshine
- 9.3 h
- Daylight
- 13.7 h
June
- Rain
- 11 days
- Sunshine
- 11.3 h
- Daylight
- 14.1 h
July
- Rain
- 8 days
- Sunshine
- 12.1 h
- Daylight
- 13.9 h
August
- Rain
- 8 days
- Sunshine
- 11.5 h
- Daylight
- 13.2 h
September
- Rain
- 9 days
- Sunshine
- 10.2 h
- Daylight
- 12.3 h
October
- Rain
- 9 days
- Sunshine
- 9.0 h
- Daylight
- 11.4 h
November
- Rain
- 9 days
- Sunshine
- 7.1 h
- Daylight
- 10.6 h
December
- Rain
- 8 days
- Sunshine
- 6.6 h
- Daylight
- 10.2 h
Looking for warmer alternatives? Browse warm places by month, or compare Austin's coolest part of the year: January, December, February.
Seasonal weather under Austin's sunnier skies
Spring (March through May)
Spring brings comfortable warmth here - highs near 79°F (26°C), nights near 60°F (16°C), and rain falls on around 38 of the 90 days.
Summer (June through August)
Summer in Austin brings serious heat, with daytime highs averaging 94°F (35°C) and nights around 76°F (24°C); expect showers on roughly 28 days across the season. Daylight is generous - around 11.6 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
Fall (September through November)
Fall brings hot afternoons here - highs near 81°F (27°C), nights near 63°F (17°C), and expect showers on roughly 27 days across the season.
Winter (December through February)
Through winter, Austin is crisp but comfortable: 63°F (17°C) by day, 45°F (7°C) after dark, and expect showers on roughly 26 days across the season.
How unusual is Austin?
- Austin sits close to the middle of our dataset on most measures: 70°F (21°C) as an annual average, 48.7 inches (1238 mm) of precipitation and 9.0 hours of sun a day.
These comparisons use the same ten-year window for every city in the dataset.
Austin temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.