RaceAtlas

Alcatraz Island Tides: Wednesday, April 16, 2025

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

5.5 ft1:36 AM-0.2 ft8:32 AM4.0 ft3:50 PM3.0 ft8:03 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.5 ft at 1:36 AM, low -0.2 ft at 8:32 AM. Gate: flood 2.2 kt at 1:17 PM, ebb 1.4 kt at 5:30 AM.
Modelled current at the Golden Gate on a 2.2 kt floodThe Gate at max flood, 2.2 kt
Tide height
TimeHeight
1:36 AMHigh5.5 ft
8:32 AMLow-0.2 ft
3:50 PMHigh4.0 ft
8:03 PMLow3.0 ft
Current · Golden Gate
TimeStateSpeed
2:48 AMslack–
5:30 AMmax ebb SW (235°)1.4 kt
9:36 AMslack–
1:17 PMmax flood ENE (074°)2.2 kt
5:49 PMslack–
7:29 PMmax ebb SW (235°)0.5 kt
9:09 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.