RaceAtlas

Alcatraz Island Tides: Sunday, August 10, 2025

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

6.3 ft12:24 AM-0.6 ft7:07 AM5.2 ft2:03 PM2.2 ft7:06 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.3 ft at 12:24 AM, low -0.6 ft at 7:07 AM. Gate: flood 3.4 kt at 11:08 AM, ebb 2.0 kt at 4:36 AM.
Modelled current at the Golden Gate on a 3.4 kt floodThe Gate at max flood, 3.4 kt
Tide height
TimeHeight
12:24 AMHigh6.3 ft
7:07 AMLow-0.6 ft
2:03 PMHigh5.2 ft
7:06 PMLow2.2 ft
Current · Golden Gate
TimeStateSpeed
1:33 AMslack–
4:36 AMmax ebb SW (235°)2.0 kt
8:01 AMslack–
11:08 AMmax flood ENE (074°)3.4 kt
3:17 PMslack–
5:58 PMmax ebb SW (235°)1.2 kt
8:24 PMslack–
11:12 PMmax flood ENE (074°)2.7 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.