RaceAtlas

Alcatraz Island Tides: Friday, April 10, 2026

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

3.4 ft12:43 AM4.6 ft5:47 AM0.3 ft1:17 PM4.1 ft9:04 PM0 ft2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 4.6 ft at 5:47 AM, low 0.3 ft at 1:17 PM. Gate: flood 1.9 kt at 6:36 PM, ebb 0.8 kt at 10:09 AM.
Modelled current at the Golden Gate on a 1.9 kt floodThe Gate at max flood, 1.9 kt
Tide height
TimeHeight
12:43 AMLow3.4 ft
5:47 AMHigh4.6 ft
1:17 PMLow0.3 ft
9:04 PMHigh4.1 ft
Current · Golden Gate
TimeStateSpeed
12:27 AMslack–
3:34 AMmax flood ENE (074°)1.5 kt
7:19 AMslack–
10:09 AMmax ebb SW (235°)0.8 kt
1:51 PMslack–
6:36 PMmax flood ENE (074°)1.9 kt
10:36 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.