RaceAtlas

Alcatraz Island Tides: Thursday, September 11, 2025

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

5.0 ft3:06 AM1.8 ft8:21 AM6.4 ft2:49 PM0.1 ft9:26 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.4 ft at 2:49 PM, low 0.1 ft at 9:26 PM. Gate: flood 3.4 kt at 12:34 PM, ebb 1.7 kt at 6:35 PM.
Modelled current at the Golden Gate on a 3.4 kt floodThe Gate at max flood, 3.4 kt
Tide height
TimeHeight
3:06 AMHigh5.0 ft
8:21 AMLow1.8 ft
2:49 PMHigh6.4 ft
9:26 PMLow0.1 ft
Current · Golden Gate
TimeStateSpeed
12:44 AMmax flood ENE (074°)3.0 kt
4:19 AMslack–
6:55 AMmax ebb SW (235°)1.4 kt
9:25 AMslack–
12:34 PMmax flood ENE (074°)3.4 kt
3:45 PMslack–
6:35 PMmax ebb SW (235°)1.7 kt
10:30 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.