Austin, United States skyline

Austin Weather in December

The usual December conditions in Austin, United States, drawn from 2006–2025 records.

Austin in December: highs near 17.5°C (63.5°F), lows near 7.7°C (45.9°F), roughly 8 rainy days adding up to 65 mm, and 6.6 hours of sunshine on an average day.

Avg high

17.5°C (63.5°F)

Avg low

7.7°C (45.9°F)

Rainfall

65 mm (2.6 in)

Rainy days

8 days

Sunshine

6.6 h / day

Humidity

70%

December vs the rest of the year

10 of the other 11 months are warmer than December in Austin; for rain it is the driest month.

MonthAvg highvs DecemberRainRainy days
January15.9°C (60.6°F)−1.6°C (−2.9°F)75 mm8
February18.2°C (64.8°F)+0.7°C (+1.3°F)66 mm8
March23°C (73.4°F)+5.5°C (+9.9°F)78 mm9
April26.4°C (79.5°F)+8.9°C (+16°F)96 mm10
May29.7°C (85.5°F)+12.2°C (+22°F)154 mm12
June33.4°C (92.1°F)+15.9°C (+28.6°F)83 mm9
July34.7°C (94.5°F)+17.2°C (+31°F)74 mm8
August35.7°C (96.3°F)+18.2°C (+32.8°F)75 mm6
September32°C (89.6°F)+14.5°C (+26.1°F)86 mm8
October27.6°C (81.7°F)+10.1°C (+18.2°F)90 mm7
November21.4°C (70.5°F)+3.9°C (+7°F)71 mm7
December17.5°C (63.5°F)—65 mm8

What December feels like in Austin

For Austin, December is early winter on the calendar. Days are on the cool side, the kind of weather that suits brisk sightseeing. After dark the temperature drops clearly: nights are cool. Moisture in the air gives the cold a damp edge.

Rain in Austin in December

Expect a mix of dry and wet days, with rain about one day in 4. Each rainy day adds about 8.1 mm (0.3 in), a proper wetting rather than a sprinkle. Across the year Austin averages about 10.1 mm per rainy day, so December is typical. December is Austin's driest month of the year.

Daylight and sunshine in December

In mid-December, sunrise is at about 7:20 am and sunset at about 5:32 pm (local time) — 10 h 13 min of daylight. Days are getting shorter: 27 min less daylight than in mid-November. About 65% of daylight hours are sunny; in short, there are plenty of bright spells.

How December compares to the rest of the year

Ranked by average high, December comes out as the 2nd coolest month in Austin. Afternoons run 3.9°C (7°F) cooler than in November, with 6 mm less rain. January is cooler again. The next month's average high: 15.9°C (60.6°F).

Who December suits

  • Sightseeing: a good fit — comfortable enough to explore on foot all day.
  • Parks & outdoor: a good fit — good conditions for sitting outside.

Tips for visiting Austin in December

Versatile Layers

Pack pieces you can take off by noon and put back on at dusk.

Rain Protection

Keep a small umbrella in your bag and wear shoes that cope with puddles.

Light Jacket

Cool days — a light jacket or sweater for walking around.

Quick questions

How warm is Austin in December?

It feels cool: typical highs are 17.5°C (63.5°F), with lows near 7.7°C (45.9°F).

Does it rain a lot in Austin in December?

Quite a lot — 65 mm spread over about 8 days.

What should I wear in Austin in December?

Pack versatile layers, rain protection and a light jacket. Add a layer for after dark.

Is December or January better for visiting Austin?

January, narrowly: it ranks #7 of 12 among Austin's months, against #8 for the other. January is cooler.

Is December a good time to visit Austin?

Good

Good — mild but cool days, some rainy days (about 8). Within Austin's own year, December ranks #8 of 12.

December in other United States cities

Warmer or drier places in December

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Austin weather by month.