Yellowfin Tuna
Thunnus albacares
Photo: Wikimedia Commons / CC License
Frequently Asked Questions About Yellowfin Tuna
When is yellowfin tuna season in Northern California?
Yellowfin tuna season in NorCal typically runs July through November, with peak action in August and September. The season depends heavily on warm water pushing north - strong El Niño years bring earlier, more consistent yellowfin action. Cold water years may see little to no yellowfin in NorCal waters.
How far offshore are yellowfin tuna in NorCal?
In Northern California, yellowfin tuna are generally found 40–200+ miles offshore, following warm blue water (65–75°F). The distance varies by year and season. Sea surface temperature charts and satellite imagery are essential for finding the warm water edges where yellowfin concentrate.
What is the bag limit for yellowfin tuna in California?
In federal waters (beyond 3 miles offshore), there is currently no daily bag limit for yellowfin tuna. California state waters regulations may have different rules. Always verify current regulations with CDFW and NOAA before fishing.
What gear do I need for yellowfin tuna?
Yellowfin tuna require serious offshore tackle: a 6'6"–7' heavy conventional rod rated 30–80 lbs paired with a conventional reel holding 400+ yards of 50–80 lb braided line. 40–60 lb fluorocarbon leaders and 4/0–6/0 circle hooks for live bait, or heavy-duty trolling gear for feathers and cedar plugs. A capable offshore vessel capable of running 40–150 miles is essential.
How do I find yellowfin tuna in NorCal?
Use sea surface temperature (SST) charts to locate warm water (65–75°F) pushed north into NorCal waters. Look for temperature breaks - transition zones between cold upwelled water and warm offshore water. Concentrate your search near submarine canyons, offshore banks, and areas where bait concentrations are indicated by bird activity. Services like Terrafin, Hilton's Fishing Charts, and Navionics SST overlays are invaluable.
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