RaceAtlas

Alcatraz Island Tides: Wednesday, August 4, 2021

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

0.3 ft4:07 AM4.4 ft11:25 AM3.3 ft3:36 PM6.0 ft9:27 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.0 ft at 9:27 PM, low 0.3 ft at 4:07 AM. Gate: flood 2.4 kt at 8:48 AM, ebb 1.0 kt at 2:53 AM.
Modelled current at the Golden Gate on a 2.4 kt floodThe Gate at max flood, 2.4 kt
Tide height
TimeHeight
4:07 AMLow0.3 ft
11:25 AMHigh4.4 ft
3:36 PMLow3.3 ft
9:27 PMHigh6.0 ft
Current · Golden Gate
TimeStateSpeed
2:53 AMmax ebb SW (235°)1.0 kt
4:59 AMslack–
8:48 AMmax flood ENE (074°)2.4 kt
12:24 PMslack–
1:55 PMmax ebb SW (235°)0.4 kt
3:41 PMslack–
6:56 PMmax flood ENE (074°)1.9 kt
10:44 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.