High surf off San Diego. Courtesy National Weather Service

Seasonal weather conditions were predicted across San Diego County this week, with weak onshore flow and temperatures near or slightly above normal, the National Weather Service said.

Fair, dry and seasonal weather is expected in Southern California this week as a series of Pacific weather systems move through northern and central California,” the weather service said.

Low coastal clouds will be likely most days during the overnight and morning hours, along with periods of high clouds for most of the week, forecasters said.

A high surf advisory is in effect through Wednesday, with waves of 3 to 7 feet and sets from 8 to 10 feet at some beaches south of Del Mar. High tide will reach 4.5 feet around noon Monday, forecasters said, bringing dangerous swimming conditions and strong rip currents.

High temperatures on Monday will be 61 to 66 along the coast, 63 to 68 inland, 58 to 64 in the mountains, and around 70 in the deserts.

Overall, the weather through the next week is forecast to be seasonal, with minor day-to-day changes in temperature, forecasters said. Temperatures should increase Wednesday as brief and weak offshore winds bring slight warming west of the mountains.

The weather service said there are no signs of any significant precipitation over the next week.

Updated at 7:30 a.m., Monday, Jan. 4, 2021

— From Staff and Wire Reports

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