RaceAtlas

Alcatraz Island Tides: Saturday, July 4, 2026

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

5.3 ft2:22 AM-0.3 ft9:10 AM4.9 ft4:26 PM2.8 ft9:36 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.3 ft at 2:22 AM, low -0.3 ft at 9:10 AM. Gate: flood 3.0 kt at 1:21 PM, ebb 1.5 kt at 6:58 AM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
2:22 AMHigh5.3 ft
9:10 AMLow-0.3 ft
4:26 PMHigh4.9 ft
9:36 PMLow2.8 ft
Current · Golden Gate
TimeStateSpeed
12:43 AMmax flood ENE (074°)2.1 kt
3:49 AMslack–
6:58 AMmax ebb SW (235°)1.5 kt
10:00 AMslack–
1:21 PMmax flood ENE (074°)3.0 kt
5:55 PMslack–
8:19 PMmax ebb SW (235°)0.9 kt
10:47 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.