RaceAtlas

Alcatraz Island Tides: Thursday, September 10, 2026

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

-0.2 ft5:36 AM5.6 ft12:21 PM1.4 ft5:50 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.6 ft at 12:21 PM, low -0.2 ft at 5:36 AM. Gate: flood 3.5 kt at 9:51 AM, ebb 1.9 kt at 4:12 AM.
Modelled current at the Golden Gate on a 3.5 kt floodThe Gate at max flood, 3.5 kt
Tide height
TimeHeight
5:36 AMLow-0.2 ft
12:21 PMHigh5.6 ft
5:50 PMLow1.4 ft
Current · Golden Gate
TimeStateSpeed
12:30 AMslack–
4:12 AMmax ebb SW (235°)1.9 kt
6:40 AMslack–
9:51 AMmax flood ENE (074°)3.5 kt
1:28 PMslack–
4:44 PMmax ebb SW (235°)1.7 kt
7:07 PMslack–
10:05 PMmax flood ENE (074°)3.0 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.