Coastal San Diegans woke up under a gray blanket today, with patchy fog and mist clinging to the shoreline and nearby neighborhoods. San Diego International (KSAN) checked in early around 61°F, with visibility trimmed to about 2.5 miles. The good news: that shallow marine layer is expected to thin by mid-morning, setting up mostly sunny skies and a warm afternoon high near 76°F. South winds should stay on the tame side at under 10 mph, leaving the hottest readings for inland spots. If you are heading toward the beach, count on low clouds to drag on the morning drive before they finally burn off.
Foggy Morning, Mostly Sunny Afternoon
The thickest fog is hugging the immediate coast and coastal mesas through mid-morning before it scatters out, while inland valleys clear sooner and warm into the mid-70s. Look for a high near 76°F with south winds of 0–10 mph this afternoon, and relative humidity in the 50–60 percent range. In the foggiest pockets, visibility can drop below two miles, so take it easy on those coastal roads. The NWS San Diego says the marine layer should gradually erode by around midday.
Plan Ahead For Your Commute
On coastal routes this morning, give yourself some extra time and stick to low beam headlights when visibility is reduced. If conditions get too dicey and you need to stop, pull completely off the roadway and wait it out rather than lingering in a traffic lane. For a deeper dive into this now-familiar pattern of cool, gray starts and toasty finishes.
Late-Tuesday Showers And Gusty Mountain Winds
A weak low is expected to slide inland Tuesday night, bringing a slight chance of light showers after 11 PM Tuesday into Wednesday morning, along with a modest midweek cooldown. The NWS San Diego notes that onshore flow will ramp up Tuesday into Wednesday, kicking up southwest-to-west gusts of 35–45 mph Tuesday evening and 45–55 mph late Tuesday night into Wednesday across the mountains and deserts. Rainfall totals should stay on the light side, from just a few hundredths of an inch along the coast to a few tenths on the highest peaks, with the main impact being those strong winds over higher terrain. As of this update, there are no watches, warnings, or advisories in effect for San Diego County.
Looking Ahead
After the brief brush with showers, a drying and warming trend returns Friday into next weekend, with inland highs running well above seasonal averages by Sunday and a generally drier stretch in the cards. Keep an eye on the forecast before locking in outdoor plans, as the pattern flips quickly this week from foggy mornings to progressively warmer afternoons.
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