The marine layer that started out dense at the beginning of the week is beginning to weaken. There will be some patchy fog along the coast and over some coastal valley locations Thursday morning, but more clearing is on the way. However, there is a marine statement in place for the coastal waters off the Santa Barbara County coastline, which means fog is fairly widespread and could impact visibility for mariners.
Daytime highs are going to range from the upper 60s to the low 70s for local beaches, which is a part of the Central Coast that will experience more afternoon clearing. Over coastal valleys, some areas will be warmer than others as San Luis Obispo could reach temperatures close to 90 degrees but conditions over Santa Maria could likely remain in the 70s. Inland valleys will continue to have seasonal temperatures, with daytime highs from the 80s and 90s.
A wind advisory will go into effect for the south coast, mountains, and foothills in Santa Barbara County at 3 p.m. and last until 3 a.m. Friday. During this time, northwest to north winds will range from 15 to 30 miles per hour, with wind gusts clocking in at 45 mph. The strongest winds are expected west of Goleta and towards Gaviota. The relative humidity over this area is forecasted to remain fairly high and from 61% to at least 90% during the duration of the advisory and gusty winds.
At the coast, a high surf advisory will go into effect at 9 p.m. Thursday and last until 9 p.m. Saturday. The advisory will cover beaches from northern San Luis Obispo County to northern Santa Barbara County as breaking waves are expected to range from eight to 12 feet.