Albacore Tuna stay farther offshore than Salmon, making them more of a challenge. They are prized for their fight as well as their good eating.
Albacore are found off the California coast from June through December, but they’re typically much closer to shore during August and September. When you’re lucky, they may be only 10 miles out, but they are often 30 or even 100 or more miles offshore.
To find Albacore near San Francisco, you need to go offshore until the temperature break where the water warms up, to at least 58.5 degrees (14.7 degrees Celsius); most boats concentrate on waters in the 63 to 65 degree range (roughly 17 to 18 degrees Celsius).
Pacific open sea surface temperature chart
Central California coastal water temperature chart