Austin weather

Our guide to the weather in Austin during December

17

Average high

3

UV Index

68mm

Monthly rainfall

69%

Humidity

We've looked at the most up-to-date weather data for Austin, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Austin weather in December.

What's the temperature like in Austin during December?

The temperature reaches around 17℃ during the daytime in December, falling away to 8℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Austin during December?

On average, there will be 4 rainy days during the month, amounting to 67.6mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Austin during December?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during December. With moderate humidity, the wind will feel chilly, so you'll want to wear layers.

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Weather in Austin

Our month-by-month guide to the weather and climate in Austin

15.6

Austin weather in

January
17.0

Austin weather in

February
21.9

Austin weather in

March
25.6

Austin weather in

April
29.4

Austin weather in

May
33.5

Austin weather in

June
35.5

Austin weather in

July
36.1

Austin weather in

August
32.2

Austin weather in

September
27.3

Austin weather in

October
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Austin weather in

November
16.6

Austin weather in

December