RaceAtlas

Alcatraz Island Tides: Friday, May 15, 2026

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

-0.9 ft5:12 AM4.6 ft12:07 PM2.1 ft4:49 PM6.6 ft11:04 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.6 ft at 11:04 PM, low -0.9 ft at 5:12 AM. Gate: flood 3.2 kt at 8:58 PM, ebb 1.9 kt at 2:34 AM.
Modelled current at the Golden Gate on a 3.2 kt floodThe Gate at max flood, 3.2 kt
Tide height
TimeHeight
5:12 AMLow-0.9 ft
12:07 PMHigh4.6 ft
4:49 PMLow2.1 ft
11:04 PMHigh6.6 ft
Current · Golden Gate
TimeStateSpeed
2:34 AMmax ebb SW (235°)1.9 kt
6:22 AMslack–
9:32 AMmax flood ENE (074°)3.0 kt
1:13 PMslack–
3:26 PMmax ebb SW (235°)1.1 kt
5:45 PMslack–
8:58 PMmax flood ENE (074°)3.2 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.