RaceAtlas

Alcatraz Island Tides: Friday, February 21, 2031

Tide heights at Alcatraz Island with the flood, ebb and slack schedule at the Golden Gate.

1.3 ft4:57 AM6.3 ft11:08 AM-0.6 ft5:26 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.3 ft at 11:08 AM, low -0.6 ft at 5:26 PM. Gate: flood 3.6 kt at 9:40 PM, ebb 1.9 kt at 3:42 PM.
Modelled current at the Golden Gate on a 3.6 kt floodThe Gate at max flood, 3.6 kt
Tide height
TimeHeight
4:57 AMLow1.3 ft
11:08 AMHigh6.3 ft
5:26 PMLow-0.6 ft
Current · Golden Gate
TimeStateSpeed
12:44 AMslack–
3:55 AMmax ebb SW (235°)1.6 kt
6:09 AMslack–
9:03 AMmax flood ENE (074°)3.3 kt
12:20 PMslack–
3:42 PMmax ebb SW (235°)1.9 kt
6:35 PMslack–
9:40 PMmax flood ENE (074°)3.6 kt

Not for navigation. These are harmonic predictions, not live measurements. Tide heights: station 9414792 (Alcatraz Island). Currents: station SFB1203 (San Francisco Bay Entrance, Golden Gate). · RaceAtlas, the SF Bay current atlas.