RaceAtlas

Alcatraz Island Tides: Wednesday, April 23, 2025

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

2.1 ft2:48 AM4.7 ft8:29 AM-0.0 ft2:55 PM5.1 ft9:50 PM0 ft2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 5.1 ft at 9:50 PM, low -0.0 ft at 2:55 PM. Gate: flood 2.9 kt at 7:05 PM, ebb 1.3 kt at 12:36 PM.
Modelled current at the Golden Gate on a 2.9 kt floodThe Gate at max flood, 2.9 kt
Tide height
TimeHeight
2:48 AMLow2.1 ft
8:29 AMHigh4.7 ft
2:55 PMLow-0.0 ft
9:50 PMHigh5.1 ft
Current · Golden Gate
TimeStateSpeed
1:21 AMmax ebb SW (235°)1.0 kt
3:42 AMslack–
6:28 AMmax flood ENE (074°)2.0 kt
9:55 AMslack–
12:36 PMmax ebb SW (235°)1.3 kt
3:40 PMslack–
7:05 PMmax flood ENE (074°)2.9 kt
11:10 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.