San Diego wakes up today to a muggy, marine-layer kind of morning around 70°F, but it will not stay mellow for long. Patchy fog is set to burn off into a warm, bright afternoon, with coastal highs near 82°F and inland neighborhoods heating up into the upper 80s to low 90s. A Heat Advisory remains in effect for coastal parts of the county through tomorrow, while inland spots flirt with even hotter, more dangerous readings. Down at the shore, beachgoers will also have to contend with higher evening tides and choppy surf that could push water onto low-lying beachside streets and parking lots.
Morning Fog, Sunny Afternoons
Patchy fog is expected along the coast before about 11 AM, then skies clear to mostly sunny by midday. Light west winds around 0 to 5 mph will keep things relatively calm, with humidity ticking up near the shoreline. Forecast highs land near 82°F at the beaches, in the upper 80s farther inland, and above 100°F in some desert pockets.
Heat Advisory In Effect
According to the National Weather Service San Diego, a Heat Advisory runs from 10 AM today through 8 PM today for coastal areas of Orange and San Diego counties, while inland zones face even hotter, potentially dangerous temperatures. The advisory warns that warm, humid nights paired with elevated daytime heat raise the risk of heat-related illness. Officials urge people to drink plenty of fluids, stay in air-conditioned spaces when possible, and check on vulnerable neighbors. Outdoor workers and event planners are encouraged to shift strenuous activity into the early morning or evening hours.
Beach Hazards and High Tides
The same office has issued a Beach Hazards Statement calling for astronomical high tides of 7 to 7.5 feet and a modest south swell generating 3 to 5 foot surf at south-facing beaches. The advisory highlights areas of flooding from tidal overflow in low-lying areas, boardwalks, beach parking lots, and beach adjacent streets, and urges people to remain out of the water to avoid hazardous swimming conditions, according to the National Weather Service San Diego. Expect the worst impacts to line up with the evening high tides.
What To Watch
Fog is most likely through the late morning, with the hottest part of the day arriving in the mid- to late afternoon. Winds turn southerly tomorrow, with gusts up to 25 mph possible inland, and a slight chance of mountain showers creeps back tomorrow afternoon. Overnight lows along the coast hold in the upper 60s, which means only limited overnight relief for those without air conditioning.
How To Stay Prepared
Shift heavy outdoor chores out of the midday window, sip water regularly, and check on older adults and anyone living without cooling.
