RaceAtlas

Alcatraz Island Tides: Thursday, July 23, 2026

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

0.7 ft2:32 AM3.9 ft9:43 AM3.2 ft1:38 PM5.9 ft7:54 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.9 ft at 7:54 PM, low 0.7 ft at 2:32 AM. Gate: flood 2.1 kt at 6:50 AM, ebb 0.9 kt at 12:44 AM.
Modelled current at the Golden Gate on a 2.1 kt floodThe Gate at max flood, 2.1 kt
Tide height
TimeHeight
2:32 AMLow0.7 ft
9:43 AMHigh3.9 ft
1:38 PMLow3.2 ft
7:54 PMHigh5.9 ft
Current · Golden Gate
TimeStateSpeed
12:44 AMmax ebb SW (235°)0.9 kt
3:08 AMslack–
6:50 AMmax flood ENE (074°)2.1 kt
10:17 AMslack–
12:03 PMmax ebb SW (235°)0.6 kt
2:02 PMslack–
5:27 PMmax flood ENE (074°)2.0 kt
9:20 PMslack–

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.