RaceAtlas

Alcatraz Island Tides: Sunday, May 18, 2025

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

5.1 ft3:14 AM-0.5 ft10:32 AM4.3 ft6:22 PM3.3 ft10:51 PM0 ft2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 5.1 ft at 3:14 AM, low -0.5 ft at 10:32 AM. Gate: flood 2.4 kt at 2:49 PM, ebb 1.4 kt at 7:46 AM.
Modelled current at the Golden Gate on a 2.4 kt floodThe Gate at max flood, 2.4 kt
Tide height
TimeHeight
3:14 AMHigh5.1 ft
10:32 AMLow-0.5 ft
6:22 PMHigh4.3 ft
10:51 PMLow3.3 ft
Current · Golden Gate
TimeStateSpeed
1:38 AMmax flood ENE (074°)2.1 kt
4:35 AMslack–
7:46 AMmax ebb SW (235°)1.4 kt
11:26 AMslack–
2:49 PMmax flood ENE (074°)2.4 kt
8:08 PMslack–
9:57 PMmax ebb SW (235°)0.5 kt
11:43 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.