California starts the morning wrapped in mist along the San Diego coast. Streetlights blur into halos, brake lights glow red, and visibility drops quickly on early drives near the airport and shoreline.
According to the National Weather Service in San Diego, a Dense Fog Advisory remains in effect until 9 a.m. Pacific Time. Visibility has dropped to around two miles or less in spots, especially near coastal roads and low-lying areas. Humidity remains high, and light winds are allowing fog to linger longer than usual.
Drivers should slow down, use low-beam headlights, and allow extra stopping distance. Conditions can change block by block. Travel around San Diego International Airport, Interstate 5, and nearby surface streets may be affected through the morning commute.
Fog gradually thins later this morning as sunshine breaks through. High temperatures reach the upper 60s today, keeping December Weather mild and comfortable once clouds lift. Tonight brings another round of patchy fog, especially inland and near the coast.
Monday starts gray again before clearing. Highs climb into the low 70s, continuing a warm, quiet pattern. Tuesday turns even warmer, with sunshine pushing highs into the mid-70s. That calm stretch favors night and morning fog redevelopment, a typical winter setup for Southern California.
By midweek, patchy fog remains possible early, followed by mostly sunny afternoons. No rain is expected through Wednesday, and winds stay light. While winter storms impact other regions, San Diego’s main hazard stays visibility-related.
With Christmas travel increasing this week, morning drivers should plan around fog-prone hours. Flights and road travel may see brief delays early each day before conditions improve.
5-Day Outlook for San Diego, CA
• Today: Patchy fog early, then partly sunny. High near 69°.
• Monday: Morning fog, then sunny. High near 72°.
• Tuesday: Sunny. High near 74°.
• Wednesday: Patchy fog early, then sunny. High near 73°.
• Thursday: Mostly sunny. High near 73°.
