RaceAtlas

Alcatraz Island Tides: Saturday, July 19, 2025

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

0.5 ft1:44 AM3.8 ft8:31 AM2.6 ft12:45 PM6.5 ft7:26 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.5 ft at 7:26 PM, low 0.5 ft at 1:44 AM. Gate: flood 2.7 kt at 5:02 PM, ebb 1.4 kt at 11:45 PM.
Modelled current at the Golden Gate on a 2.7 kt floodThe Gate at max flood, 2.7 kt
Tide height
TimeHeight
1:44 AMLow0.5 ft
8:31 AMHigh3.8 ft
12:45 PMLow2.6 ft
7:26 PMHigh6.5 ft
Current · Golden Gate
TimeStateSpeed
2:33 AMslack–
5:49 AMmax flood ENE (074°)2.2 kt
9:35 AMslack–
11:30 AMmax ebb SW (235°)0.7 kt
1:35 PMslack–
5:02 PMmax flood ENE (074°)2.7 kt
8:35 PMslack–
11:45 PMmax ebb SW (235°)1.4 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.