RaceAtlas

Alcatraz Island Tides: Tuesday, September 8, 2026

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

-0.5 ft4:14 AM5.2 ft11:13 AM2.3 ft4:12 PM6.4 ft10:13 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.4 ft at 10:13 PM, low -0.5 ft at 4:14 AM. Gate: flood 3.0 kt at 8:36 AM, ebb 1.7 kt at 3:00 AM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
4:14 AMLow-0.5 ft
11:13 AMHigh5.2 ft
4:12 PMLow2.3 ft
10:13 PMHigh6.4 ft
Current · Golden Gate
TimeStateSpeed
3:00 AMmax ebb SW (235°)1.7 kt
5:18 AMslack–
8:36 AMmax flood ENE (074°)3.0 kt
12:20 PMslack–
3:10 PMmax ebb SW (235°)1.1 kt
5:07 PMslack–
8:12 PMmax flood ENE (074°)2.7 kt
11:35 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.