RaceAtlas

Alcatraz Island Tides: Saturday, July 31, 2021

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

1.8 ft12:28 AM3.8 ft6:23 AM2.1 ft11:44 AM5.5 ft6:27 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.5 ft at 6:27 PM, low 1.8 ft at 12:28 AM. Gate: flood 2.1 kt at 3:38 PM, ebb 0.9 kt at 11:51 PM.
Modelled current at the Golden Gate on a 2.1 kt floodThe Gate at max flood, 2.1 kt
Tide height
TimeHeight
12:28 AMLow1.8 ft
6:23 AMHigh3.8 ft
11:44 AMLow2.1 ft
6:27 PMHigh5.5 ft
Current · Golden Gate
TimeStateSpeed
1:13 AMslack–
4:46 AMmax flood ENE (074°)1.8 kt
8:02 AMslack–
9:57 AMmax ebb SW (235°)0.7 kt
12:16 PMslack–
3:38 PMmax flood ENE (074°)2.1 kt
8:00 PMslack–
11:51 PMmax ebb SW (235°)0.9 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.