RaceAtlas

Alcatraz Island Tides: Wednesday, October 20, 2021

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

5.1 ft12:18 AM1.3 ft5:50 AM5.8 ft12:14 PM0.4 ft6:32 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.8 ft at 12:14 PM, low 0.4 ft at 6:32 PM. Gate: flood 3.1 kt at 10:03 AM, ebb 1.8 kt at 5:16 PM.
Modelled current at the Golden Gate on a 3.1 kt floodThe Gate at max flood, 3.1 kt
Tide height
TimeHeight
12:18 AMHigh5.1 ft
5:50 AMLow1.3 ft
12:14 PMHigh5.8 ft
6:32 PMLow0.4 ft
Current · Golden Gate
TimeStateSpeed
1:35 AMslack–
4:12 AMmax ebb SW (235°)1.4 kt
6:49 AMslack–
10:03 AMmax flood ENE (074°)3.1 kt
1:33 PMslack–
5:16 PMmax ebb SW (235°)1.8 kt
7:53 PMslack–
10:59 PMmax flood ENE (074°)3.0 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.