RaceAtlas

Alcatraz Island Tides: Sunday, July 12, 2026

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

-1.2 ft4:45 AM4.6 ft12:08 PM3.2 ft4:08 PM7.1 ft10:20 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 7.1 ft at 10:20 PM, low -1.2 ft at 4:45 AM. Gate: flood 2.9 kt at 8:20 PM, ebb 1.7 kt at 3:15 AM.
Modelled current at the Golden Gate on a 2.9 kt floodThe Gate at max flood, 2.9 kt
Tide height
TimeHeight
4:45 AMLow-1.2 ft
12:08 PMHigh4.6 ft
4:08 PMLow3.2 ft
10:20 PMHigh7.1 ft
Current · Golden Gate
TimeStateSpeed
3:15 AMmax ebb SW (235°)1.7 kt
6:00 AMslack–
9:16 AMmax flood ENE (074°)2.9 kt
1:07 PMslack–
3:13 PMmax ebb SW (235°)0.7 kt
5:06 PMslack–
8:20 PMmax flood ENE (074°)2.9 kt
11:35 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.