As of 5:35 AM today, San Diego International Airport (KSAN) was reporting clear skies and a temperature of roughly 55°F. A veil of patchy fog is still hanging over some low-lying coastal neighborhoods, but it should thin by mid-morning, setting up sunny afternoons across most of the county. High temperatures will climb from the upper 70s today into the low-to-mid-80s for many inland and valley neighborhoods later this week.
Heat Advisory Through Friday
A Heat Advisory is in effect from 10 AM today through 8 PM Friday for San Diego County coastal areas and valleys, according to NWS San Diego. Officials warn that hot conditions, with temperatures in the 80s near the coast and at times in the mid-90s inland, will increase the risk of heat-related illness. They recommend spending time in air-conditioned spots during the peak heat, taking extra precautions if you work outdoors, and never leaving children or pets unattended in vehicles.
Hotter Toward Midweek, Records Possible
Forecast highs are near 79°F today and climb to about 83°F tomorrow, with the warmest readings expected on Thursday and Friday. Some daily March records could be threatened, according to the NWS San Diego forecast discussion. Inland valleys and deserts are poised for the hottest readings later in the week, while coastal neighborhoods should stay several degrees cooler.
Foggy Mornings, Sunny Afternoons
Low clouds and patchy fog will be most common near the coast each morning, trimming visibility and slowing early commutes until the sun burns it off by mid- to late-morning. A light layer will come in handy if you are heading to the shore early, and drivers should allow extra time for morning trips. Inland neighborhoods will warm quickly once the marine layer lifts, leading to a sharp coast-to-inland temperature contrast each afternoon.
Beach Conditions And Rip Currents
Surf of 2 to 4 feet with sets to 5 feet is expected into Wednesday, producing a moderate rip-current risk and locally hazardous swimming conditions, the NWS San Diego forecast discussion notes. Beachgoers are advised to swim near lifeguards and follow posted warnings, and lifeguards and county officials will post updates if conditions change.
Practical Tips
Drink plenty of fluids, limit strenuous activity during the warmest hours, and plan visits to air-conditioned places if you can. If you need to work outdoors, take frequent breaks in the shade and move heavy tasks to early morning or evening. Call 2-1-1 if you need help finding cooling centers or other local services during the heat.
