Business Casual
Navy Trench and Shorts
A navy trench coat over khaki bermuda shorts and a blue linen blouse works between seasons on a mild rainy day. Black pointed-toe heels sharpen what could easily be too casual.
What to Wear in San Antonio in December
What to wear
top / Long-Sleeve Top
fitted long-sleeve
lightweight layer for mild temps
bottom / Jeans
straight-leg
chinos for a slightly smarter look
footwear / Waterproof Boots
ankle boots
rubber sole for traction — keep feet dry all day
outerwear / Rain Jacket
shell jacket
waterproof or DWR-treated — keep it packable
Consider bringing:
Umbrella
Based on typical December conditions in San Antonio. Weather varies year to year — check the live forecast when you're within two weeks of your trip.
San Antonio in December is generally mild and pleasant, with average highs near 64°F. Expect occasional rain in San Antonio in December — a compact umbrella earns its place in your bag. A light to mid-weight jacket with comfortable layering is the smart choice; a compact umbrella or packable rain layer is sensible insurance. Plan outfits that can transition comfortably between outdoor conditions and air-conditioned interiors. The Tex-Mex cultural richness with a San Antonio casual-warm ease style sensibility shapes what works here — practical and polished, comfort-forward without sacrificing presence. Whether you're exploring San Antonio's neighborhoods or attending events, December rewards dressers who layer thoughtfully and prioritize fabric quality for the conditions.
Curated Looks
Casual
Olive Anorak Trousers
An olive anorak handles mild rain without abandoning the polish of wide-leg navy trousers underneath. The crossbody stays tucked and close.
Chic
Cream Puffer Wide-Leg
A cream oversized puffer over a navy striped cardigan and wide-leg ivory linen trousers handles mild rain with a considered mix of textures. Black ballet flats are the restrained finish.
Cozy
Parka Cable Knit Mules
A black longline parka over a cable knit sweater in mild rain keeps warmth without overdressing. Black mule heels under leggings are an unexpected and intentional detail.
Cute
Blush Jacket Knit Skirt
A blush cropped jacket over a grey cardigan and black sweater mini skirt handles mild rain with charm. A black bucket bag and ankle boots keep the proportions balanced.
Formal
Grey Coat Wide-Leg
A grey longline coat over an ivory blouse and black wide-leg trousers handles mild rain without losing formal intent. Black Chelsea boots and a mini bag keep it focused.
Sporty
Cargo Rain Jacket
A black rain jacket over an oversized graphic tee and olive cargo trousers handles mild rain practically. White lace-up booties finish the look with enough contrast to lift the palette.
Other Months in San Antonio
Frequently Asked Questions
What should I wear in San Antonio in December?+
San Antonio in December is mild, with pleasant temperatures in the 60s. Comfortable layering works well: a jacket or cardigan over lighter pieces covers temperature variation through the day.
How hot is San Antonio in December?+
San Antonio in December averages highs around 64°F. Pleasant and mild — comfortable for outdoor activities with a light layer.
Does it rain in San Antonio in December?+
December brings occasional rain to San Antonio — not a daily occurrence but enough to keep an umbrella accessible.
What to pack for San Antonio in December?+
For San Antonio in December, pack a mid-weight jacket, warm layers, and comfortable boots. Versatile layering pieces give you flexibility for changing conditions.