
Marin County is kicking off the week under sunshine and unusually mild air, with highs near 65F and light east winds in the forecast. The tradeoff is a Coastal Flood Advisory from 9 a.m. to 1 p.m. Monday for bayshore locations along San Pablo Bay, where the morning high tide is expected to bring shallow flooding to low-lying lots, parks, and roads.
Minor Bayside Flooding This Morning
High tide at the San Francisco tidal gauge is expected near 11:12 a.m. Monday, about 1.0 foot above normal, just enough to push water into known low-lying spots in the North Bay. Impacts are expected to stay minor, but motorists and property owners near the shore should not drive through standing water or bypass barricades. For tide timing and advisory details, see the NWS San Francisco.
Foggy Mornings, Sunny Afternoons
Patchy fog may slow the morning commute in the North and East Bay valleys, with reduced visibility in spots, but the marine layer should clear by midday. Skies are expected to turn mostly sunny with afternoon highs around 65F and light winds, with overnight lows dipping into the mid-40s.
Beach Hazards and Boating
While the Bay stays relatively mild, the outer coast remains hazardous as a long-period westerly swell produces large breaking waves and strong rip currents through this evening. Officials advise staying off jetties and piers, avoiding entering the water, and having boats heed any small craft advisories.
What To Do
If your route takes you along the shoreline during Monday's high tide window, build in extra time and consider moving vehicles to higher ground beforehand. Marin County has posted higher-ground parking options and safety tips for the king-tide period, so check local resources before traveling in Marin County.
Week Ahead
A ridge will keep the region dry and a few degrees above normal through midweek, with Wednesday likely the warmest day. A weak trough may approach late in the week, bringing a small chance of light rain by the weekend. Keep an eye on updates from local officials.









