RaceAtlas

Alcatraz Island Tides: Tuesday, July 29, 2025

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

4.9 ft3:03 AM0.7 ft9:21 AM5.4 ft4:17 PM2.0 ft10:17 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.4 ft at 4:17 PM, low 0.7 ft at 9:21 AM. Gate: flood 3.0 kt at 1:41 PM, ebb 1.3 kt at 7:38 AM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
3:03 AMHigh4.9 ft
9:21 AMLow0.7 ft
4:17 PMHigh5.4 ft
10:17 PMLow2.0 ft
Current · Golden Gate
TimeStateSpeed
1:30 AMmax flood ENE (074°)2.1 kt
4:52 AMslack–
7:38 AMmax ebb SW (235°)1.3 kt
10:22 AMslack–
1:41 PMmax flood ENE (074°)3.0 kt
5:46 PMslack–
8:34 PMmax ebb SW (235°)1.1 kt
11:25 PMslack–

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.