RaceAtlas

Alcatraz Island Tides: Thursday, August 14, 2025

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

4.6 ft4:02 AM1.5 ft9:33 AM6.2 ft4:17 PM0.9 ft10:54 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.2 ft at 4:17 PM, low 0.9 ft at 10:54 PM. Gate: flood 3.3 kt at 1:48 PM, ebb 1.5 kt at 8:01 PM.
Modelled current at the Golden Gate on a 3.3 kt floodThe Gate at max flood, 3.3 kt
Tide height
TimeHeight
4:02 AMHigh4.6 ft
9:33 AMLow1.5 ft
4:17 PMHigh6.2 ft
10:54 PMLow0.9 ft
Current · Golden Gate
TimeStateSpeed
1:50 AMmax flood ENE (074°)2.6 kt
5:27 AMslack–
8:00 AMmax ebb SW (235°)1.3 kt
10:33 AMslack–
1:48 PMmax flood ENE (074°)3.3 kt
5:14 PMslack–
8:01 PMmax ebb SW (235°)1.5 kt
11:50 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.