RaceAtlas

Alcatraz Island Tides: Saturday, May 23, 2026

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

2.5 ft12:14 AM4.7 ft5:34 AM-0.1 ft12:19 PM5.2 ft7:35 PM0 ft2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 5.2 ft at 7:35 PM, low -0.1 ft at 12:19 PM. Gate: flood 2.9 kt at 4:40 PM, ebb 1.2 kt at 11:43 PM.
Modelled current at the Golden Gate on a 2.9 kt floodThe Gate at max flood, 2.9 kt
Tide height
TimeHeight
12:14 AMLow2.5 ft
5:34 AMHigh4.7 ft
12:19 PMLow-0.1 ft
7:35 PMHigh5.2 ft
Current · Golden Gate
TimeStateSpeed
12:38 AMslack–
3:22 AMmax flood ENE (074°)1.9 kt
6:56 AMslack–
10:16 AMmax ebb SW (235°)1.1 kt
1:02 PMslack–
4:40 PMmax flood ENE (074°)2.9 kt
8:41 PMslack–
11:43 PMmax ebb SW (235°)1.2 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.