RaceAtlas

Alcatraz Island Tides: Friday, October 23, 2026

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

0.9 ft3:52 AM5.6 ft10:26 AM0.9 ft4:36 PM4.9 ft10:51 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.6 ft at 10:26 AM, low 0.9 ft at 3:52 AM. Gate: flood 2.8 kt at 7:44 AM, ebb 1.5 kt at 2:40 PM.
Modelled current at the Golden Gate on a 2.8 kt floodThe Gate at max flood, 2.8 kt
Tide height
TimeHeight
3:52 AMLow0.9 ft
10:26 AMHigh5.6 ft
4:36 PMLow0.9 ft
10:51 PMHigh4.9 ft
Current · Golden Gate
TimeStateSpeed
1:38 AMmax ebb SW (235°)1.1 kt
4:18 AMslack–
7:44 AMmax flood ENE (074°)2.8 kt
11:34 AMslack–
2:40 PMmax ebb SW (235°)1.5 kt
5:39 PMslack–
8:45 PMmax flood ENE (074°)2.4 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.