RaceAtlas

Alcatraz Island Tides: Thursday, August 28, 2025

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

4.3 ft3:44 AM2.2 ft9:06 AM5.5 ft3:38 PM1.3 ft10:20 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.5 ft at 3:38 PM, low 1.3 ft at 10:20 PM. Gate: flood 2.4 kt at 1:23 PM, ebb 1.1 kt at 7:35 PM.
Modelled current at the Golden Gate on a 2.4 kt floodThe Gate at max flood, 2.4 kt
Tide height
TimeHeight
3:44 AMHigh4.3 ft
9:06 AMLow2.2 ft
3:38 PMHigh5.5 ft
10:20 PMLow1.3 ft
Current · Golden Gate
TimeStateSpeed
2:03 AMmax flood ENE (074°)2.1 kt
5:52 AMslack–
7:59 AMmax ebb SW (235°)0.9 kt
10:15 AMslack–
1:23 PMmax flood ENE (074°)2.4 kt
5:02 PMslack–
7:35 PMmax ebb SW (235°)1.1 kt
11:19 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.