RaceAtlas

Alcatraz Island Tides: Friday, July 11, 2025

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

-0.9 ft7:01 AM4.7 ft2:21 PM3.2 ft6:38 PM0 ft2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 4.7 ft at 2:21 PM, low -0.9 ft at 7:01 AM. Gate: flood 2.7 kt at 11:19 AM, ebb 1.8 kt at 4:04 AM.
Modelled current at the Golden Gate on a 2.7 kt floodThe Gate at max flood, 2.7 kt
Tide height
TimeHeight
7:01 AMLow-0.9 ft
2:21 PMHigh4.7 ft
6:38 PMLow3.2 ft
Current · Golden Gate
TimeStateSpeed
12:57 AMslack–
4:04 AMmax ebb SW (235°)1.8 kt
8:02 AMslack–
11:19 AMmax flood ENE (074°)2.7 kt
3:46 PMslack–
5:44 PMmax ebb SW (235°)0.7 kt
7:36 PMslack–
10:36 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.