RaceAtlas

Alcatraz Island Tides: Thursday, April 9, 2026

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

4.8 ft4:36 AM0.4 ft12:12 PM4.0 ft8:24 PM0 ft2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 4.8 ft at 4:36 AM, low 0.4 ft at 12:12 PM. Gate: flood 1.8 kt at 5:56 PM, ebb 0.8 kt at 8:49 AM.
Modelled current at the Golden Gate on a 1.8 kt floodThe Gate at max flood, 1.8 kt
Tide height
TimeHeight
4:36 AMHigh4.8 ft
12:12 PMLow0.4 ft
8:24 PMHigh4.0 ft
Current · Golden Gate
TimeStateSpeed
2:36 AMmax flood ENE (074°)1.7 kt
6:08 AMslack–
8:49 AMmax ebb SW (235°)0.8 kt
12:56 PMslack–
5:56 PMmax flood ENE (074°)1.8 kt
9:58 PMslack–
11:12 PMmax ebb SW (235°)0.2 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.