RaceAtlas

Alcatraz Island Tides: Wednesday, July 9, 2025

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

-0.6 ft5:51 AM4.5 ft1:16 PM3.4 ft5:17 PM6.3 ft11:13 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.3 ft at 11:13 PM, low -0.6 ft at 5:51 AM. Gate: flood 2.5 kt at 10:30 AM, ebb 1.4 kt at 2:38 AM.
Modelled current at the Golden Gate on a 2.5 kt floodThe Gate at max flood, 2.5 kt
Tide height
TimeHeight
5:51 AMLow-0.6 ft
1:16 PMHigh4.5 ft
5:17 PMLow3.4 ft
11:13 PMHigh6.3 ft
Current · Golden Gate
TimeStateSpeed
2:38 AMmax ebb SW (235°)1.4 kt
6:52 AMslack–
10:30 AMmax flood ENE (074°)2.5 kt
2:33 PMslack–
4:09 PMmax ebb SW (235°)0.5 kt
5:47 PMslack–
9:04 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.