RaceAtlas

Alcatraz Island Tides: Saturday, May 16, 2026

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

-1.4 ft5:58 AM4.7 ft1:06 PM2.5 ft5:35 PM6.8 ft11:45 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.8 ft at 11:45 PM, low -1.4 ft at 5:58 AM. Gate: flood 3.2 kt at 9:45 PM, ebb 2.0 kt at 3:07 AM.
Modelled current at the Golden Gate on a 3.2 kt floodThe Gate at max flood, 3.2 kt
Tide height
TimeHeight
5:58 AMLow-1.4 ft
1:06 PMHigh4.7 ft
5:35 PMLow2.5 ft
11:45 PMHigh6.8 ft
Current · Golden Gate
TimeStateSpeed
12:06 AMslack–
3:07 AMmax ebb SW (235°)2.0 kt
7:11 AMslack–
10:19 AMmax flood ENE (074°)3.1 kt
2:07 PMslack–
4:17 PMmax ebb SW (235°)1.1 kt
6:36 PMslack–
9:45 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.