RaceAtlas

Alcatraz Island Tides: Friday, October 22, 2021

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

4.7 ft1:51 AM2.3 ft6:55 AM5.8 ft1:02 PM0.1 ft7:40 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.8 ft at 1:02 PM, low 0.1 ft at 7:40 PM. Gate: flood 2.6 kt at 11:01 AM, ebb 1.4 kt at 5:16 PM.
Modelled current at the Golden Gate on a 2.6 kt floodThe Gate at max flood, 2.6 kt
Tide height
TimeHeight
1:51 AMHigh4.7 ft
6:55 AMLow2.3 ft
1:02 PMHigh5.8 ft
7:40 PMLow0.1 ft
Current · Golden Gate
TimeStateSpeed
3:18 AMslack–
5:33 AMmax ebb SW (235°)1.1 kt
8:04 AMslack–
11:01 AMmax flood ENE (074°)2.6 kt
2:28 PMslack–
5:16 PMmax ebb SW (235°)1.4 kt
9:06 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.