RaceAtlas

Alcatraz Island Tides: Saturday, October 17, 2026

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

4.2 ft7:02 AM3.7 ft11:14 AM4.9 ft4:24 PM0.6 ft11:56 PM2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 4.9 ft at 4:24 PM, low 0.6 ft at 11:56 PM. Gate: flood 2.0 kt at 4:30 AM, ebb 0.8 kt at 8:38 PM.
Modelled current at the Golden Gate on a 2.0 kt floodThe Gate at max flood, 2.0 kt
Tide height
TimeHeight
7:02 AMHigh4.2 ft
11:14 AMLow3.7 ft
4:24 PMHigh4.9 ft
11:56 PMLow0.6 ft
Current · Golden Gate
TimeStateSpeed
4:30 AMmax flood ENE (074°)2.0 kt
8:29 AMslack–
9:54 AMmax ebb SW (235°)0.3 kt
11:26 AMslack–
2:23 PMmax flood ENE (074°)1.6 kt
5:57 PMslack–
8:38 PMmax ebb SW (235°)0.8 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.