RaceAtlas

Alcatraz Island Tides: Saturday, October 18, 2025

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

0.7 ft4:08 AM5.6 ft10:49 AM1.1 ft4:47 PM5.0 ft10:54 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.6 ft at 10:49 AM, low 0.7 ft at 4:08 AM. Gate: flood 3.2 kt at 8:22 AM, ebb 1.7 kt at 3:25 PM.
Modelled current at the Golden Gate on a 3.2 kt floodThe Gate at max flood, 3.2 kt
Tide height
TimeHeight
4:08 AMLow0.7 ft
10:49 AMHigh5.6 ft
4:47 PMLow1.1 ft
10:54 PMHigh5.0 ft
Current · Golden Gate
TimeStateSpeed
2:41 AMmax ebb SW (235°)1.3 kt
4:51 AMslack–
8:22 AMmax flood ENE (074°)3.2 kt
11:53 AMslack–
3:25 PMmax ebb SW (235°)1.7 kt
5:47 PMslack–
8:57 PMmax flood ENE (074°)2.6 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.