California – Low clouds cling to the coastline this morning as mist softens streetlights and dampens sidewalks across San Diego. Drivers ease through intersections with headlights glowing, while patchy fog drifts in and out near the coast, hinting at a changing pattern as winter slowly takes hold.
According to the National Weather Service, fog remains the main concern through Sunday and Monday mornings, especially before mid-morning. Visibility may drop quickly near the coast, inland valleys, and along I-5 and I-805 during early travel hours, before clouds thin and partial sunshine returns later in the day.
High temperatures hold near the upper 60s through Monday, keeping conditions comfortable but seasonably cool. Even so, the persistent cloud cover and damp air signal a transition. Meteorologists are now tracking a developing system that brings a chance of rain starting Tuesday, with higher confidence in steadier rainfall by midweek.
By Tuesday afternoon, showers may begin to impact roadways, with wet pavement and reduced visibility becoming more common into the evening. That timing matters as Christmas travel ramps up across Southern California. Travelers heading to San Diego International Airport or driving longer distances should plan extra time and expect slower conditions, especially after sunset.
Rain chances continue through Wednesday and Christmas Day, keeping a gray, wet pattern in place. While snow is not a concern locally, this warm-to-wet shift reflects an early winter rhythm setting up across the West. Cooler nights, lingering moisture, and slick roads could catch drivers off guard.
For now, keep windshields clear during foggy mornings and stay weather-aware as rain approaches. Traveling this week? Tell us how conditions look where you are.
Five-Day Outlook for San Diego, California
- Today: Patchy fog early, then partial sun; high near 66
- Sunday: Morning fog, then mostly sunny; high near 68
- Monday: Patchy fog, mostly cloudy; high near 68
- Tuesday: Chance of rain developing; high near 67
- Wednesday: Rain likely at times; high near 69





