Austin climate

Name: Austin
Address: US

Austin is warmest in August, with average highs of 35 °C, and coldest in January, when nights average 6.3 °C. May is the wettest month (122 mm) and July the driest (45 mm). Figures are 1991–2020 climate normals.

Across a full year Austin averages 924 mm of rain, 216 days above 25 °C and 7 days below freezing.

United States · 149 m elevation · population 974,447 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month August 35 °C
Coldest month January 6.3 °C
Driest month July 45 mm
Wettest month May 122 mm
Least cloud October 42 % cloud
Hottest on record August 42 °C
Coldest on record February -7.7 °C

What to expectAustin through the year

Austin has a clear annual cycle: average daily highs run from 17 °C in January to 35 °C in August, a swing of 19 °C in mean temperature across the year.

Counted across a normal year, 216 days a year reach 25 °C, 132 of them reach 30 °C, 7 nights drop below freezing. The warmest reading in the 1991–2020 record is 42 °C, in August.

Rain is strongly seasonal. May averages 122 mm against 45 mm in July — 2.7 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	16.6 °C	65 mm	54 %
February	18.9 °C	69 mm	57 %
March	22.5 °C	76 mm	57 %
April	26.3 °C	87 mm	54 %
May	29.6 °C	122 mm	58 %
June	32.8 °C	81 mm	48 %
July	34.7 °C	45 mm	45 %
August	35.2 °C	58 mm	43 %
September	31.6 °C	82 mm	43 %
October	27.1 °C	87 mm	42 %
November	21.1 °C	76 mm	49 %
December	17.1 °C	74 mm	54 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	16.6 °C	6.3 °C	10.6 °C	28.5 °C	-7.2 °C	1	0	3
February	18.9 °C	8.1 °C	12.6 °C	36.8 °C	-7.7 °C	3	0	2
March	22.5 °C	11.6 °C	16.3 °C	34.3 °C	-4.8 °C	10	1	1
April	26.3 °C	15.3 °C	20.2 °C	36.6 °C	1.5 °C	21	4	0
May	29.6 °C	19.6 °C	24.1 °C	37.8 °C	7.8 °C	29	14	0
June	32.8 °C	23.0 °C	27.5 °C	40.8 °C	15.0 °C	30	25	0
July	34.7 °C	24.4 °C	29.3 °C	41.3 °C	19.0 °C	31	30	0
August	35.2 °C	24.9 °C	29.7 °C	42.4 °C	18.3 °C	31	30	0
September	31.6 °C	21.9 °C	26.3 °C	41.9 °C	11.2 °C	29	22	0
October	27.1 °C	16.9 °C	21.4 °C	35.9 °C	0.3 °C	23	8	0
November	21.1 °C	11.4 °C	15.6 °C	30.0 °C	-3.3 °C	7	0	0
December	17.1 °C	7.4 °C	11.5 °C	28.7 °C	-5.1 °C	1	0	2

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	65 mm	7	10 h/day	54 %	69 %	20 km/h
February	69 mm	8	11 h/day	57 %	70 %	20 km/h
March	76 mm	9	12 h/day	57 %	69 %	21 km/h
April	87 mm	9	13 h/day	54 %	68 %	22 km/h
May	122 mm	11	14 h/day	58 %	72 %	20 km/h
June	81 mm	9	14 h/day	48 %	69 %	18 km/h
July	45 mm	6	14 h/day	45 %	64 %	18 km/h
August	58 mm	5	13 h/day	43 %	60 %	17 km/h
September	82 mm	8	12 h/day	43 %	65 %	16 km/h
October	87 mm	7	11 h/day	42 %	66 %	17 km/h
November	76 mm	7	11 h/day	49 %	69 %	19 km/h
December	74 mm	7	10 h/day	54 %	70 %	19 km/h

How Austin compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Austin	35 °C	6.3 °C	924 mm	216
San Antonio · United States	35 °C	7.2 °C	861 mm	227
Cypress · United States	34 °C	7.7 °C	1,173 mm	213
Houston · United States	33 °C	8.1 °C	1,281 mm	215

Where Austin ranks

Ranking	Position	Value
The warmest places in North America in August	17th of 50	35 °C
The warmest places in North America in July	24th of 50	35 °C
The warmest places in North America in June	34th of 50	33 °C
The warmest places in North America in September	36th of 50	32 °C

Planning a trip? See the best time to visit Austin.

QuestionsCommon questions about Austin’s climate

When is the best time to visit Austin?

That depends on what you want, so the honest answer is a comparison rather than a single month. March, April, October sit closest to 20 °C on average, August is the warmest month and July the driest. The month-by-month table above has the full picture.

How hot does Austin get?

In August, the warmest month, daily highs average 35 °C. About 132 days a year pass 30 °C. The highest value in the 1991–2020 record is 42 °C.

How cold does it get in winter?

Nights average 6.3 °C in January, the coldest month. A normal year has 7 nights below freezing.

Which month is wettest in Austin?

May, averaging 122 mm over 11 days with rain. The driest month is July with 45 mm. The year as a whole averages 924 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Austin rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: 30.267°, -97.743° , 149 m above sea level (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.