RaceAtlas

Alcatraz Island Tides: Friday, May 16, 2025

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

5.5 ft1:42 AM-0.7 ft8:54 AM4.2 ft4:41 PM3.4 ft8:32 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.5 ft at 1:42 AM, low -0.7 ft at 8:54 AM. Gate: flood 2.2 kt at 1:26 PM, ebb 1.6 kt at 5:51 AM.
Modelled current at the Golden Gate on a 2.2 kt floodThe Gate at max flood, 2.2 kt
Tide height
TimeHeight
1:42 AMHigh5.5 ft
8:54 AMLow-0.7 ft
4:41 PMHigh4.2 ft
8:32 PMLow3.4 ft
Current · Golden Gate
TimeStateSpeed
2:56 AMslack–
5:51 AMmax ebb SW (235°)1.6 kt
9:58 AMslack–
1:26 PMmax flood ENE (074°)2.2 kt
6:31 PMslack–
8:00 PMmax ebb SW (235°)0.4 kt
9:30 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.