RaceAtlas

Alcatraz Island Tides: Sunday, April 12, 2026

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

2.6 ft2:48 AM4.6 ft8:11 AM0.2 ft2:57 PM4.6 ft9:59 PM0 ft2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 4.6 ft at 8:11 AM, low 0.2 ft at 2:57 PM. Gate: flood 2.4 kt at 7:13 PM, ebb 1.0 kt at 12:15 PM.
Modelled current at the Golden Gate on a 2.4 kt floodThe Gate at max flood, 2.4 kt
Tide height
TimeHeight
2:48 AMLow2.6 ft
8:11 AMHigh4.6 ft
2:57 PMLow0.2 ft
9:59 PMHigh4.6 ft
Current · Golden Gate
TimeStateSpeed
1:03 AMmax ebb SW (235°)0.7 kt
3:08 AMslack–
6:00 AMmax flood ENE (074°)1.6 kt
9:42 AMslack–
12:15 PMmax ebb SW (235°)1.0 kt
3:24 PMslack–
7:13 PMmax flood ENE (074°)2.4 kt
11:20 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.