RaceAtlas

Alcatraz Island Tides: Friday, August 1, 2025

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

1.5 ft12:25 AM3.6 ft6:40 AM2.7 ft11:21 AM5.5 ft6:05 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.5 ft at 6:05 PM, low 1.5 ft at 12:25 AM. Gate: flood 2.0 kt at 3:24 PM, ebb 0.8 kt at 9:54 PM.
Modelled current at the Golden Gate on a 2.0 kt floodThe Gate at max flood, 2.0 kt
Tide height
TimeHeight
12:25 AMLow1.5 ft
6:40 AMHigh3.6 ft
11:21 AMLow2.7 ft
6:05 PMHigh5.5 ft
Current · Golden Gate
TimeStateSpeed
1:03 AMslack–
5:10 AMmax flood ENE (074°)1.7 kt
8:34 AMslack–
10:13 AMmax ebb SW (235°)0.5 kt
12:05 PMslack–
3:24 PMmax flood ENE (074°)2.0 kt
7:28 PMslack–
9:54 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.