RaceAtlas

Alcatraz Island Tides: Tuesday, October 21, 2031

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

4.6 ft4:58 AM3.0 ft9:35 AM5.8 ft3:41 PM-0.2 ft10:36 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.8 ft at 3:41 PM, low -0.2 ft at 10:36 PM. Gate: flood 2.8 kt at 1:39 PM, ebb 1.6 kt at 7:33 PM.
Modelled current at the Golden Gate on a 2.8 kt floodThe Gate at max flood, 2.8 kt
Tide height
TimeHeight
4:58 AMHigh4.6 ft
9:35 AMLow3.0 ft
3:41 PMHigh5.8 ft
10:36 PMLow-0.2 ft
Current · Golden Gate
TimeStateSpeed
1:52 AMmax flood ENE (074°)2.7 kt
6:22 AMslack–
8:32 AMmax ebb SW (235°)0.8 kt
10:40 AMslack–
1:39 PMmax flood ENE (074°)2.8 kt
4:41 PMslack–
7:33 PMmax ebb SW (235°)1.6 kt
11:40 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.