RaceAtlas

Alcatraz Island Tides: Thursday, September 21, 2023

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

4.0 ft5:39 AM3.3 ft9:40 AM5.7 ft4:09 PM0.5 ft11:27 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.7 ft at 4:09 PM, low 0.5 ft at 11:27 PM. Gate: flood 2.6 kt at 2:17 PM, ebb 1.3 kt at 7:59 PM.
Modelled current at the Golden Gate on a 2.6 kt floodThe Gate at max flood, 2.6 kt
Tide height
TimeHeight
5:39 AMHigh4.0 ft
9:40 AMLow3.3 ft
4:09 PMHigh5.7 ft
11:27 PMLow0.5 ft
Current · Golden Gate
TimeStateSpeed
2:29 AMmax flood ENE (074°)2.0 kt
7:23 AMslack–
9:07 AMmax ebb SW (235°)0.5 kt
10:53 AMslack–
2:17 PMmax flood ENE (074°)2.6 kt
5:21 PMslack–
7:59 PMmax ebb SW (235°)1.3 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.