Today started cool and calm in San Diego, with mostly clear skies, about 59°F at Lindbergh Field, and a light southeast breeze. Coastal neighborhoods get the cool treatment, while inland valleys quietly start a steady warm-up that will build through the week. Most of the county stays dry, although a few quick, isolated showers could sneak into the far south.
Morning Clouds And A Small Shower Chance
A band of showers and isolated thunder sitting over northern Baja may just graze the far southern edge of San Diego County early Monday and again this afternoon, giving the best odds for measurable rain to spots near the border (around 15-25%). According to the National Weather Service San Diego, most inland and coastal neighborhoods are looking at passing clouds and maybe a few sprinkles at most. If your errands take you to Otay Mesa or other south-county stops, tossing a small umbrella in the car is not the worst idea.
Afternoon Breeze And Gusts
By afternoon, expect mostly sunny skies with a high near 68°F in the city and south winds around 0-10 mph, with gusts up to about 20 mph in exposed areas and through canyon passes. Onshore flow will keep the immediate coast noticeably cooler than inland spots, so bring a light jacket for waterfront plans while areas away from the water start nudging toward the 70s. Mariners are not looking at hazardous marine conditions through Friday, although shifting winds could make small-craft outings a bit choppier than usual.
Warm Up Later This Week
After tomorrow, the temperature trend jumps up in a hurry. Highs move into the mid 70s on Wednesday (near 74°F) and climb into the upper 80s for many inland valleys by Thursday and Friday, with neighborhoods just inland from the city also feeling a solid bump. Strengthening high pressure and occasional offshore breezes are expected to push inland readings even higher into the weekend and next week. If you have outdoor plans later this week, plan for real heat away from the coast, along with extra water and shade.
Weekend Fog And What To Do
Patchy fog is possible Saturday night, March 14 (after 11 PM), with lingering coastal fog before 11 AM on Sunday, March 15, followed by sunnier conditions and highs near 80°F. Early-morning shoreline commuters should be ready for reduced visibility and slower traffic along the coast on Sunday morning. Check updated forecasts before pre-dawn beach plans and give yourself extra time for any drive that hugs the water.
More Context
We first flagged this gusty-to-warm pattern in an earlier piece; today’s update tightens the timing and highlights the small shower risk for the far south county.
