RaceAtlas

Alcatraz Island Tides: Tuesday, September 23, 2025

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

5.1 ft1:13 AM1.4 ft6:53 AM5.6 ft1:18 PM0.7 ft7:30 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.6 ft at 1:18 PM, low 0.7 ft at 7:30 PM. Gate: flood 3.0 kt at 11:06 AM, ebb 1.5 kt at 5:33 PM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
1:13 AMHigh5.1 ft
6:53 AMLow1.4 ft
1:18 PMHigh5.6 ft
7:30 PMLow0.7 ft
Current · Golden Gate
TimeStateSpeed
2:51 AMslack–
5:25 AMmax ebb SW (235°)1.4 kt
8:02 AMslack–
11:06 AMmax flood ENE (074°)3.0 kt
2:38 PMslack–
5:33 PMmax ebb SW (235°)1.5 kt
8:54 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.