RaceAtlas

Alcatraz Island Tides: Saturday, September 13, 2025

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

4.3 ft5:44 AM3.1 ft10:02 AM6.3 ft4:27 PM0.1 ft11:46 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.3 ft at 4:27 PM, low 0.1 ft at 11:46 PM. Gate: flood 2.8 kt at 2:10 PM, ebb 1.3 kt at 8:06 PM.
Modelled current at the Golden Gate on a 2.8 kt floodThe Gate at max flood, 2.8 kt
Tide height
TimeHeight
5:44 AMHigh4.3 ft
10:02 AMLow3.1 ft
4:27 PMHigh6.3 ft
11:46 PMLow0.1 ft
Current · Golden Gate
TimeStateSpeed
2:36 AMmax flood ENE (074°)2.5 kt
6:40 AMslack–
8:43 AMmax ebb SW (235°)0.8 kt
10:57 AMslack–
2:10 PMmax flood ENE (074°)2.8 kt
5:28 PMslack–
8:06 PMmax ebb SW (235°)1.3 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.