RaceAtlas

Alcatraz Island Tides: Thursday, August 7, 2025

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

-0.4 ft5:24 AM4.7 ft12:37 PM3.2 ft5:00 PM6.4 ft10:57 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.4 ft at 10:57 PM, low -0.4 ft at 5:24 AM. Gate: flood 2.5 kt at 9:58 AM, ebb 1.4 kt at 2:31 AM.
Modelled current at the Golden Gate on a 2.5 kt floodThe Gate at max flood, 2.5 kt
Tide height
TimeHeight
5:24 AMLow-0.4 ft
12:37 PMHigh4.7 ft
5:00 PMLow3.2 ft
10:57 PMHigh6.4 ft
Current · Golden Gate
TimeStateSpeed
2:31 AMmax ebb SW (235°)1.4 kt
6:20 AMslack–
9:58 AMmax flood ENE (074°)2.5 kt
2:00 PMslack–
3:53 PMmax ebb SW (235°)0.6 kt
5:39 PMslack–
8:47 PMmax flood ENE (074°)2.4 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.