Fall Tide Swing Sets the Clock for SF Bay and Bodega Anglers

What's next

That coastal-to-bay split should hold or widen slightly over the next couple of days as the region settles deeper into its early-fall transition, with upwelling typically strongest along the open coast this time of year. The First Quarter moon keeps tidal exchange moderate rather than extreme, so the morning high into midday low window is the most reliable structure to build a trip around through the weekend.

On the open coast near Bodega, the cooler incoming water tends to sharpen activity along current edges and structure; inside the bay, the warmer water favors working early, low-light hours before the sun pushes surface temperatures higher through the afternoon.

Context

Mid-to-late September sits in Northern California's typical early-fall transition, when the exposed Bodega coast usually cools ahead of the more sheltered bay as seasonal upwelling strengthens. That lag between coast and bay is right on schedule this week. Check current state regulations before harvesting any catch.