RaceAtlas

Alcatraz Island Tides: Wednesday, April 22, 2026

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

5.9 ft3:25 AM-0.9 ft10:42 AM4.4 ft6:24 PM3.2 ft10:48 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.9 ft at 3:25 AM, low -0.9 ft at 10:42 AM. Gate: flood 2.7 kt at 1:24 AM, ebb 1.4 kt at 7:27 AM.
Modelled current at the Golden Gate on a 2.7 kt floodThe Gate at max flood, 2.7 kt
Tide height
TimeHeight
3:25 AMHigh5.9 ft
10:42 AMLow-0.9 ft
6:24 PMHigh4.4 ft
10:48 PMLow3.2 ft
Current · Golden Gate
TimeStateSpeed
1:24 AMmax flood ENE (074°)2.7 kt
4:31 AMslack–
7:27 AMmax ebb SW (235°)1.4 kt
11:49 AMslack–
3:02 PMmax flood ENE (074°)2.5 kt
7:25 PMslack–
9:20 PMmax ebb SW (235°)0.6 kt
11:18 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.