A persistent trough of low pressure over San Diego County was predicted to keep a deep marine layer in place through next week, the National Weather Service said.
“Marine clouds will develop throughout the coastal basin each night, and may be difficult to
clear in the coming days,” the agency said. “The cloud layer will be thick enough to produce some patchy, light drizzle nights and mornings, but with little accumulation.”
Highs on Sunday are forecast to be 65 to 69 near the coast, 70 inland, 70 to 73 in the western valleys, 73 to 78 near the foothills, 70 to 80 in the mountains and 96 to 99 in the deserts.
Long period south swells will maintain elevated surf with a moderate to high risk of rip currents through the Memorial Day weekend. The highest surf will occur on south-facing beaches where sets up to 6 feet are possible, with the highest on Memorial Day.
The trough was expected to move east Thursday for warmer days and a shallower marine layer next weekend.
Updated at 7:30 a.m., Sunday, May 29, 2023
City News Service contributed to this article.