RaceAtlas

Alcatraz Island Tides: Friday, June 12, 2026

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

-0.6 ft4:08 AM4.2 ft11:11 AM2.6 ft3:27 PM6.7 ft9:48 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.7 ft at 9:48 PM, low -0.6 ft at 4:08 AM. Gate: flood 3.0 kt at 7:41 PM, ebb 1.7 kt at 1:12 AM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
4:08 AMLow-0.6 ft
11:11 AMHigh4.2 ft
3:27 PMLow2.6 ft
9:48 PMHigh6.7 ft
Current · Golden Gate
TimeStateSpeed
1:12 AMmax ebb SW (235°)1.7 kt
5:16 AMslack–
8:33 AMmax flood ENE (074°)2.7 kt
12:13 PMslack–
2:14 PMmax ebb SW (235°)0.8 kt
4:25 PMslack–
7:41 PMmax flood ENE (074°)3.0 kt
10:58 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.