RaceAtlas

Alcatraz Island Tides: Sunday, September 14, 2025

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

4.3 ft7:21 AM3.4 ft11:21 AM6.1 ft5:33 PM4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.1 ft at 5:33 PM, low 3.4 ft at 11:21 AM. Gate: flood 2.5 kt at 3:07 PM, ebb 1.1 kt at 9:20 PM.
Modelled current at the Golden Gate on a 2.5 kt floodThe Gate at max flood, 2.5 kt
Tide height
TimeHeight
7:21 AMHigh4.3 ft
11:21 AMLow3.4 ft
5:33 PMHigh6.1 ft
Current · Golden Gate
TimeStateSpeed
12:36 AMslack–
3:55 AMmax flood ENE (074°)2.2 kt
7:57 AMslack–
9:51 AMmax ebb SW (235°)0.6 kt
11:53 AMslack–
3:07 PMmax flood ENE (074°)2.5 kt
6:39 PMslack–
9:20 PMmax ebb SW (235°)1.1 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.