RaceAtlas

Alcatraz Island Tides: Tuesday, May 18, 2027

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

-0.6 ft5:11 AM4.4 ft11:58 AM2.2 ft4:39 PM6.2 ft10:58 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.2 ft at 10:58 PM, low -0.6 ft at 5:11 AM. Gate: flood 3.1 kt at 8:50 PM, ebb 1.9 kt at 3:40 AM.
Modelled current at the Golden Gate on a 3.1 kt floodThe Gate at max flood, 3.1 kt
Tide height
TimeHeight
5:11 AMLow-0.6 ft
11:58 AMHigh4.4 ft
4:39 PMLow2.2 ft
10:58 PMHigh6.2 ft
Current · Golden Gate
TimeStateSpeed
3:40 AMmax ebb SW (235°)1.9 kt
6:14 AMslack–
9:26 AMmax flood ENE (074°)3.1 kt
12:53 PMslack–
3:25 PMmax ebb SW (235°)1.2 kt
5:37 PMslack–
8:50 PMmax flood ENE (074°)3.1 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.