SAN DIEGO — Onshore flow is still intact with the passage of a low pressure system near Arizona. It led to cool temperatures and a westerly breeze on Wednesday. Expect more low clouds at the coast and patchy inland fog on repeat Wednesday night through Thursday morning, and again Thursday night through Friday morning. Visibility will be down to a mile or less at times.
By the end the week, high pressure will move in over the West. This will lead to much warmer temperatures as the air dries and the marine layer clouds clear out. Temperatures will trend 10 to 15 degrees warmer than normal under clear skies. Expect highs in the upper 60s to low 70s along the coast and widespread upper 70s to low 80s inland.
Additionally, the gusty offshore winds, out of the east and northeast, by the end of the week will also dry us out even more. Relative humidity values look to drop into the teens in the afternoon hours. This will prompt elevated fire weather concerns, especially inland. Please avoid outdoor burning if at all possible during this time frame.
THURSDAY TEMPERATURES:
SEASONAL (AVERAGE) DAYTIME HIGHS:
- Coastal highs near 66 to 68 degrees
- Inland valley highs near 67 degrees
- Mountain highs near 52 degrees
- Desert highs near 71 degrees
AT THE COAST:
Our recent elevated surf of 3 to 5 feet has subsided. Expect the surf to be 1 to 3 feet with a low risk of rip currents on Thursday.
Onshore flow looks to temporarily pick up on Sunday. This will lead to a slip in temperatures countywide into the start of next week. Models are also hinting at the return of Santa Ana winds on Tuesday. Temperatures will warm up again on that day, west of the mountains. More details in the days to come.
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