RaceAtlas

Alcatraz Island Tides: Wednesday, July 16, 2025

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

4.7 ft3:55 AM0.5 ft10:07 AM5.7 ft5:09 PM1.7 ft11:20 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.7 ft at 5:09 PM, low 0.5 ft at 10:07 AM. Gate: flood 3.3 kt at 2:20 PM, ebb 1.5 kt at 8:15 AM.
Modelled current at the Golden Gate on a 3.3 kt floodThe Gate at max flood, 3.3 kt
Tide height
TimeHeight
3:55 AMHigh4.7 ft
10:07 AMLow0.5 ft
5:09 PMHigh5.7 ft
11:20 PMLow1.7 ft
Current · Golden Gate
TimeStateSpeed
2:05 AMmax flood ENE (074°)2.3 kt
5:26 AMslack–
8:15 AMmax ebb SW (235°)1.5 kt
11:02 AMslack–
2:20 PMmax flood ENE (074°)3.3 kt
6:16 PMslack–
9:04 PMmax ebb SW (235°)1.3 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.