Formal
Black Blazer Pleated Rain
A black blazer over an ivory blouse and pleated maxi skirt in warm rain is complete formal coverage. Black mule heels are the practical formal choice when espadrilles are off the table.
What to Wear in San Diego in December
December in San Diego is mild and partly sunny, with highs averaging 66°F and cool nights near 50°F — light layers and a medium-weight jacket are all most days require. The Gaslamp Quarter, Balboa Park, and the Torrey Pines State Reserve are all pleasant for outdoor exploration without the summer beach crowds. About 5 days bring rain, usually as Pacific winter systems rather than all-day downpours.
What to wear
top / Short-Sleeve Top
classic tee
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:
UmbrellaSunglasses
Based on typical December conditions in San Diego. Weather varies year to year — check the live forecast when you're within two weeks of your trip.
San Diego in December offers a delightful escape from harsh winter weather, yet it's far from a summer beach day. Expect typically mild, pleasant conditions with an average high around 65°F (18°C) and lows dipping into the mid-40s to low-50s°F (7-11°C). While it's one of the wetter months, precipitation is usually light and sporadic, with plenty of sunshine still gracing the forecast. You're more likely to encounter cool, crisp mornings and evenings, with comfortable, sun-drenched afternoons. Key to dressing for San Diego in December is strategic layering. Think versatile pieces that can be easily added or removed as temperatures fluctuate throughout the day. Opt for long-sleeved tops, light sweaters or cardigans, and well-fitting jeans or comfortable trousers for daytime explorations. For cooler mornings, evenings, or coastal strolls, a stylish yet practical jacket—like a denim, leather, or a light puffer—is essential. Don't forget comfortable closed-toe shoes for walking and exploring, along with sunglasses for those bright, sunny moments, even in winter.
Curated Looks
Cozy
Parka and the Ivory Mules
A black longline parka over a crewneck sweatshirt in warm rain has a deliberateness that works. Ivory satin mules and a cream beanie are the contrasts that make it.
Casual
Linen Under Rain Jacket
A black rain jacket over ivory linen trousers refuses to look sloppy in warm rain. Espadrilles and a crochet bucket hat keep the warm-weather mood alive below the waterline.
Cute
Double Denim Rainy Day
A light wash denim jacket over a denim mini skirt makes a strong case for double denim in warm rain. The black square neck top underneath adds structure.
Chic
Blush Jacket Tortoise
A blush cropped jacket over a white linen blouse and ivory wide-leg trousers refuses to look heavy in warm rain. Tortoiseshell cat-eye sunglasses are the editorial punctuation.
Business Casual
White Linen Blazer Day
A white linen blazer over matching wide-leg linen trousers and a blue collarless blouse stays entirely polished through warm rain. Slide sandals and gold aviators make it feel like summer despite the drizzle.
Sporty
Yellow Jacket Biker
A yellow hooded rain jacket over biker shorts and a longline tee handles warm rain with high-visibility attitude. Ivory pointed-toe mules are the surprising finishing note.
Packing List
What to Pack for San Diego in December →
Other Months in San Diego
Frequently Asked Questions
What to wear in San Diego in December?+
Focus on versatile layers when packing for San Diego in December. During the day, think long-sleeved tops, light sweaters, and comfortable jeans. For evenings or cooler mornings, a medium-weight jacket (like denim or a light puffer) is essential to stay warm. Always include comfortable walking shoes and sunglasses.
Is San Diego cold in December?+
San Diego in December is generally mild rather than truly cold, especially compared to other parts of the country. Daytime temperatures typically reach the mid-60s°F, but evenings and mornings can feel quite cool, dipping into the 40s°F. Layering is crucial to adapt to these temperature shifts throughout the day.
Does it rain in San Diego in December?+
December is part of San Diego's 'rainier' season, meaning there's a higher chance of precipitation compared to other months. However, rainfall is generally light, intermittent, and often brief, not continuous downpours. It's wise to pack a light, packable umbrella or a water-resistant jacket, but don't expect daily rain.
What should I pack for San Diego in December?+
Pack a mix of comfortable, layered clothing for San Diego in December. Essentials include long-sleeved shirts, light to medium-weight sweaters, several pairs of jeans or trousers, and a versatile jacket (denim, leather, or a light puffer). Don't forget comfortable closed-toe walking shoes, sunglasses, and perhaps a light scarf for added warmth and style.
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