San Diego is waking up cloudy and around 68 degrees today, but the clouds should thin as the morning goes on, with a mostly sunny afternoon reaching about 82. The weekend brings the more consequential forecast: warmer coastal terrain, sticky nights and rough surf along the shoreline.
Heat Peaks Saturday
Tonight should stay mild, near 70, followed by a high around 85 tomorrow. Next Sunday backs off slightly to about 82, with next Monday cooler near 79 before highs settle around 81 next Tuesday through next Thursday.
A Heat Advisory is in effect for San Diego County coastal areas from 10 AM today through 8 PM next Sunday, with mesas and higher coastal terrain expected to reach the mid-80s to around 90. The National Weather Service says hot temperatures may cause heat illness, so residents should drink plenty of fluids, use air conditioning when needed and check on relatives and neighbors.
Beach Conditions Turn Dangerous
The shoreline has its own warning: a High Surf Advisory runs through 5 PM tomorrow, with 4- to 7-foot breaking waves and sets up to 9 feet on south- and southwest-facing beaches. West-facing beaches could see 3- to 6-foot surf, and the swell linked to Hurricane Genevieve will make conditions especially risky for inexperienced swimmers.
Evening high tides above 5 feet could combine with the surf to cause minor flooding in low-lying beach parking lots, boardwalks and roads through 3 AM tomorrow. The Coastal Flood Advisory advises people not to drive around barricades or through water of unknown depth, and warns that waves can sweep people off jetties and docks.
Sunny Afternoons, Cloudy Nights
Today's northwest winds should stay light, generally 0 to 10 mph, while overnight lows remain near 69 to 70 through early next week. Expect mostly sunny afternoons today through next Thursday, with some partly cloudy or mostly cloudy nights along the coast.
