RaceAtlas

Alcatraz Island Tides: Sunday, December 19, 2027

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

5.5 ft4:38 AM2.1 ft10:27 AM4.6 ft4:02 PM0.5 ft10:15 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.5 ft at 4:38 AM, low 0.5 ft at 10:15 PM. Gate: flood 3.2 kt at 1:35 AM, ebb 1.3 kt at 8:12 PM.
Modelled current at the Golden Gate on a 3.2 kt floodThe Gate at max flood, 3.2 kt
Tide height
TimeHeight
4:38 AMHigh5.5 ft
10:27 AMLow2.1 ft
4:02 PMHigh4.6 ft
10:15 PMLow0.5 ft
Current · Golden Gate
TimeStateSpeed
1:35 AMmax flood ENE (074°)3.2 kt
5:50 AMslack–
8:41 AMmax ebb SW (235°)1.1 kt
11:12 AMslack–
1:53 PMmax flood ENE (074°)2.1 kt
5:24 PMslack–
8:12 PMmax ebb SW (235°)1.3 kt
11:09 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.