RaceAtlas

Alcatraz Island Tides: Sunday, October 4, 2026

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

-0.1 ft12:52 AM4.7 ft8:30 AM3.3 ft1:06 PM5.6 ft6:46 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.6 ft at 6:46 PM, low -0.1 ft at 12:52 AM. Gate: flood 2.3 kt at 5:21 AM, ebb 0.5 kt at 11:33 AM.
Modelled current at the Golden Gate on a 2.3 kt floodThe Gate at max flood, 2.3 kt
Tide height
TimeHeight
12:52 AMLow-0.1 ft
8:30 AMHigh4.7 ft
1:06 PMLow3.3 ft
6:46 PMHigh5.6 ft
Current · Golden Gate
TimeStateSpeed
1:46 AMslack–
5:21 AMmax flood ENE (074°)2.3 kt
9:33 AMslack–
11:33 AMmax ebb SW (235°)0.5 kt
1:17 PMslack–
4:23 PMmax flood ENE (074°)2.1 kt
7:59 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.