RaceAtlas

Alcatraz Island Tides: Tuesday, February 21, 2023

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

5.5 ft12:43 AM1.4 ft6:02 AM6.3 ft12:11 PM-0.7 ft6:33 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.3 ft at 12:11 PM, low -0.7 ft at 6:33 PM. Gate: flood 3.6 kt at 10:43 PM, ebb 2.0 kt at 4:34 PM.
Modelled current at the Golden Gate on a 3.6 kt floodThe Gate at max flood, 3.6 kt
Tide height
TimeHeight
12:43 AMHigh5.5 ft
6:02 AMLow1.4 ft
12:11 PMHigh6.3 ft
6:33 PMLow-0.7 ft
Current · Golden Gate
TimeStateSpeed
1:58 AMslack–
5:06 AMmax ebb SW (235°)1.5 kt
7:20 AMslack–
10:10 AMmax flood ENE (074°)3.1 kt
1:26 PMslack–
4:34 PMmax ebb SW (235°)2.0 kt
7:39 PMslack–
10:43 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.