Light rain on La Jolla Shores beach
Women walk along La Jolla Shores Beach in the rain. File photo by Chris Stone

A cold front moving down the coast Sunday night will bring rain Monday, heaviest in the afternoon and evening, the National Weather Service said.

The front is connected with the “atmospheric river” that is dumping rain and snow on northern and central California, but precipitation will be much lighter in San Diego — under half an inch along the coast and inland, and up to an inch in the mountains.

Temperatures will fall, with highs Monday around 68 along the coast, 63 to 68 inland, 56 to 64 in the mountains and 79 to 84 in the deserts.

A high surf advisory was issued from 11 a.m. Monday to 3 a.m. Wednesday for San Diego County coastal areas.

A high rip-current risk was expected at all beaches Monday through early Wednesday. A long period west swell, and a long period south swell may result in surf of 6-8 feet, with sets up to 10 feet possible in southern San Diego County, forecasters said.

Strong gusty winds were expected Monday in parts of the mountains and deserts, forecasters said.

Tuesday was predicted to be a dry, cool day, followed by warmer weather and weak offshore flow in the second half of this week.

Daytime highs should increase to above seasonal norms with some highs in the 90s in the valleys and especially lower deserts by Thursday, with a slight cooling trend over the weekend.

The storm system was expected to bring southwest and northwest winds with gusts of 20-25 knots in the outer waters and closer to 20 knots across the inner waters Monday afternoon and Tuesday. Combined seas of 6-10 feet were expected, highest in the outer waters.

A small craft advisory was issued from 11 a.m. Monday to 5 a.m. Tuesday for coastal waters from San Mateo Point to the Mexican border and out to 30 nautical miles from San Mateo point to the Mexican border extending 30 to 60 nautical miles out, including San Clemente Island.

Updated at 10:50 p.m., Sunday, Oct. 24,2021

City News Service contributed to this article.