RaceAtlas

Alcatraz Island Tides: Saturday, October 11, 2025

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

4.7 ft4:30 AM3.1 ft8:50 AM6.4 ft3:00 PM-0.5 ft10:12 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.4 ft at 3:00 PM, low -0.5 ft at 10:12 PM. Gate: flood 3.0 kt at 12:58 PM, ebb 1.5 kt at 6:52 PM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
4:30 AMHigh4.7 ft
8:50 AMLow3.1 ft
3:00 PMHigh6.4 ft
10:12 PMLow-0.5 ft
Current · Golden Gate
TimeStateSpeed
1:28 AMmax flood ENE (074°)2.8 kt
5:26 AMslack–
7:37 AMmax ebb SW (235°)0.9 kt
9:49 AMslack–
12:58 PMmax flood ENE (074°)3.0 kt
4:05 PMslack–
6:52 PMmax ebb SW (235°)1.5 kt
11:16 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.