San Diego started today under a blanket of low clouds and patchy fog, with temperatures hovering near 61°F at the airport. The marine layer is expected to thin by late morning, giving way to mostly sunny skies and a high around 75°F along the coast, while inland spots warm into the 80s.
Warming Trend Accelerates Monday
The real heat kicks in Monday, when a Heat Advisory goes into effect from 10 AM tomorrow until 8 PM on Friday, for coastal and valley communities. An Extreme Heat Watch is also posted for the mountains and deserts for Thursday and Friday. Forecasters are calling for temperatures 15-25°F above normal and say there is potential for record highs later in the week, according to NWS San Diego.
Where It Will Be Hottest
Coastal neighborhoods are expected to climb into the low to mid-80s by tomorrow, while inland valleys and the inland coastal plain are forecast to reach the mid-80s to mid-90s. The low deserts could approach or even exceed 100°F on the hottest days. Overnight lows in many areas will only dip into the upper 50s to low 60s, which means limited cooling and little nighttime relief.
Afternoon Winds and Surf
Offshore and northerly winds will strengthen tomorrow along mountain slopes and through passes, with gusts of 25-35 mph and locally higher bursts near some canyons. Those gusts could make outdoor work trickier and driving across exposed bridges and roads more hazardous. A long-period south-southwesterly swell from Monday into Wednesday will push breaking waves to 4-6 feet on south-facing beaches and increase the rip-current risk, according to NWS San Diego.
How To Stay Safe
Officials are urging residents to plan ahead: drink plenty of water, avoid prolonged midday outdoor exertion, and schedule heavy work for the morning or evening hours whenever possible. People without reliable cooling should identify nearby cool rooms or centers in advance, using local resources and tips from the City of San Diego, or by calling 2-1-1 for assistance.
This article updates earlier coverage of the warming trend after new advisories were posted. Check local forecasts before locking in any outdoor plans later this week.
