RaceAtlas

Alcatraz Island Tides: Wednesday, September 24, 2025

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

4.8 ft1:59 AM2.0 ft7:22 AM5.6 ft1:40 PM0.6 ft8:07 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.6 ft at 1:40 PM, low 0.6 ft at 8:07 PM. Gate: flood 2.7 kt at 11:35 AM, ebb 1.4 kt at 5:43 PM.
Modelled current at the Golden Gate on a 2.7 kt floodThe Gate at max flood, 2.7 kt
Tide height
TimeHeight
1:59 AMHigh4.8 ft
7:22 AMLow2.0 ft
1:40 PMHigh5.6 ft
8:07 PMLow0.6 ft
Current · Golden Gate
TimeStateSpeed
12:11 AMmax flood ENE (074°)2.7 kt
3:44 AMslack–
6:09 AMmax ebb SW (235°)1.2 kt
8:36 AMslack–
11:35 AMmax flood ENE (074°)2.7 kt
3:03 PMslack–
5:43 PMmax ebb SW (235°)1.4 kt
9:27 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.