A high surf advisory is in effect along the Central Coast beaches until Wednesday at 2 p.m. when it's replaced by a high surf warning, which means conditions will be dangerous.
During the warning, large breaking waves of 15 to 20 feet are expected to be accompanied by dangerous rip currents.
Those strong waves could damage coastal structures like piers and pose an extreme risk of drowning to people, as well as small boats.
Moderate to strong winds will gradually weaken into Wednesday but will return Wednesday night through Friday.
Skies are expected to be mostly clear throughout the week and temperatures will remain around normal going into Wednesday.
Thursday temperatures are expected to be a little cooler but another batch of warmer than average temperatures are forecast Friday into the weekend.
No significant chance of rain exists for San Luis Obispo or Santa Barbara Counties, though a light shower is possible for the interior valleys and mountains on Thursday.