RaceAtlas

Alcatraz Island Tides: Friday, August 20, 2027

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

5.1 ft1:48 AM0.9 ft7:52 AM5.5 ft2:34 PM1.6 ft8:25 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.5 ft at 2:34 PM, low 0.9 ft at 7:52 AM. Gate: flood 3.0 kt at 11:56 AM, ebb 1.3 kt at 6:29 PM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
1:48 AMHigh5.1 ft
7:52 AMLow0.9 ft
2:34 PMHigh5.5 ft
8:25 PMLow1.6 ft
Current · Golden Gate
TimeStateSpeed
3:31 AMslack–
6:06 AMmax ebb SW (235°)1.3 kt
8:43 AMslack–
11:56 AMmax flood ENE (074°)3.0 kt
3:37 PMslack–
6:29 PMmax ebb SW (235°)1.3 kt
9:40 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.