RaceAtlas

Alcatraz Island Tides: Tuesday, October 28, 2025

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

4.3 ft6:57 AM3.8 ft11:01 AM4.9 ft4:21 PM0.4 ft11:47 PM0 ft2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 4.9 ft at 4:21 PM, low 0.4 ft at 11:47 PM. Gate: flood 1.8 kt at 3:30 AM, ebb 1.1 kt at 8:44 PM.
Modelled current at the Golden Gate on a 1.8 kt floodThe Gate at max flood, 1.8 kt
Tide height
TimeHeight
6:57 AMHigh4.3 ft
11:01 AMLow3.8 ft
4:21 PMHigh4.9 ft
11:47 PMLow0.4 ft
Current · Golden Gate
TimeStateSpeed
3:30 AMmax flood ENE (074°)1.8 kt
8:47 AMslack–
10:01 AMmax ebb SW (235°)0.2 kt
11:19 AMslack–
2:30 PMmax flood ENE (074°)1.8 kt
5:44 PMslack–
8:44 PMmax ebb SW (235°)1.1 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.