RaceAtlas

Alcatraz Island Tides: Friday, May 21, 2027

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

6.1 ft12:05 AM-1.0 ft7:08 AM4.5 ft2:31 PM3.1 ft6:48 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.1 ft at 12:05 AM, low -1.0 ft at 7:08 AM. Gate: flood 3.0 kt at 11:49 AM, ebb 1.5 kt at 4:20 AM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
12:05 AMHigh6.1 ft
7:08 AMLow-1.0 ft
2:31 PMHigh4.5 ft
6:48 PMLow3.1 ft
Current · Golden Gate
TimeStateSpeed
1:29 AMslack–
4:20 AMmax ebb SW (235°)1.5 kt
8:26 AMslack–
11:49 AMmax flood ENE (074°)3.0 kt
3:29 PMslack–
5:50 PMmax ebb SW (235°)1.0 kt
8:00 PMslack–
10:52 PMmax flood ENE (074°)2.6 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.