San Diego

San Diego Braces for Cooler Weather and Showers, Drivers and Mariners Advised to Prepare for Winds and Rising Swells

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Published on January 03, 2026
San Diego Braces for Cooler Weather and Showers, Drivers and Mariners Advised to Prepare for Winds and Rising SwellsSource: vagueonthehow from Tadcaster, York, England, CC BY 2.0, via Wikimedia Commons

San Diego's weather is taking a slightly cooler turn with expectations for intermittent showers through next Thursday, followed by drier and warmer weather, as reported by the National Weather Service. Today's highs are set to be a touch cooler than yesterday's, lending a hint of respite to the region with temperatures gradually dipping closer to typical seasonal averages as the weekend progresses.

Drivers are advised to take note of increased wind conditions, with gusts possibly surpassing 50 mph in Hesperia, though not reaching the sustained levels to necessitate a Wind Advisory, driving through the Cajon Pass might be trickier during these windy periods, according to forecasts by the National Weather Service. Coastal and inland areas of Orange County are estimated to accumulate up to 0.5 inches of rain, while the San Bernardino Mountains brace for potential totals nearing 2 inches in some parts like Wrightwood.

Mountain regions won't miss out on the action, with snow levels expected to fall to the 6,500-7,500 feet range by Sunday afternoon and evening, resulting in light snow accumulations, Big Bear among other locales might see up to an inch, as detailed by the National Weather Service San Diego. Come next week, temperatures are set to stay on the cooler side under the influence of a slowly transiting trough, and then a warming and drying trend is projected to kick in by Thursday.

For mariners, no perilous conditions are foreseen through Wednesday, but a rising northwesterly swell could agitate seas to 7 to 9 feet by Thursday, with north-northwesterly winds potentially reaching gusts of 20-25 knots, as per the National Weather Service. Beachgoers should watch for high tides this morning and Sunday morning that may lead to minor coastal overflow and beaches along with flood-prone lots and walkways seeing the highest impact, with daily high tides expected to subside below 6.5 feet by Monday.

There's an increase in surf beginning Sunday due to the arriving westerly swell, which could stir up breaking waves from 4 to 7 feet, raising concerns for hazardous swimming conditions and the potential for coastal flooding, conditions are expected to slightly ease by Monday morning, but remain noteworthy. A Beach Hazards Statement is in effect and includes more detailed information about these potential risks for various coastal areas.