RaceAtlas

Alcatraz Island Tides: Friday, July 30, 2021

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

4.2 ft5:00 AM1.5 ft10:55 AM5.4 ft5:46 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.4 ft at 5:46 PM, low 1.5 ft at 10:55 AM. Gate: flood 2.5 kt at 2:57 PM, ebb 1.0 kt at 8:57 AM.
Modelled current at the Golden Gate on a 2.5 kt floodThe Gate at max flood, 2.5 kt
Tide height
TimeHeight
5:00 AMHigh4.2 ft
10:55 AMLow1.5 ft
5:46 PMHigh5.4 ft
Current · Golden Gate
TimeStateSpeed
12:18 AMslack–
3:19 AMmax flood ENE (074°)1.8 kt
6:46 AMslack–
8:57 AMmax ebb SW (235°)1.0 kt
11:38 AMslack–
2:57 PMmax flood ENE (074°)2.5 kt
7:19 PMslack–
10:53 PMmax ebb SW (235°)1.0 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.