RaceAtlas

Alcatraz Island Tides: Friday, August 8, 2025

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

-0.6 ft5:59 AM4.8 ft1:06 PM2.9 ft5:40 PM6.4 ft11:40 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.4 ft at 11:40 PM, low -0.6 ft at 5:59 AM. Gate: flood 2.8 kt at 10:16 AM, ebb 1.7 kt at 3:15 AM.
Modelled current at the Golden Gate on a 2.8 kt floodThe Gate at max flood, 2.8 kt
Tide height
TimeHeight
5:59 AMLow-0.6 ft
1:06 PMHigh4.8 ft
5:40 PMLow2.9 ft
11:40 PMHigh6.4 ft
Current · Golden Gate
TimeStateSpeed
12:01 AMslack–
3:15 AMmax ebb SW (235°)1.7 kt
6:54 AMslack–
10:16 AMmax flood ENE (074°)2.8 kt
2:28 PMslack–
4:36 PMmax ebb SW (235°)0.8 kt
6:37 PMslack–
9:36 PMmax flood ENE (074°)2.6 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.