RaceAtlas

Alcatraz Island Tides: Thursday, October 15, 2026

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

4.3 ft4:35 AM3.5 ft8:47 AM5.5 ft2:38 PM0.3 ft9:52 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.5 ft at 2:38 PM, low 0.3 ft at 9:52 PM. Gate: flood 2.4 kt at 2:07 AM, ebb 1.1 kt at 6:52 PM.
Modelled current at the Golden Gate on a 2.4 kt floodThe Gate at max flood, 2.4 kt
Tide height
TimeHeight
4:35 AMHigh4.3 ft
8:47 AMLow3.5 ft
2:38 PMHigh5.5 ft
9:52 PMLow0.3 ft
Current · Golden Gate
TimeStateSpeed
2:07 AMmax flood ENE (074°)2.4 kt
6:05 AMslack–
8:01 AMmax ebb SW (235°)0.7 kt
10:01 AMslack–
12:56 PMmax flood ENE (074°)2.1 kt
4:11 PMslack–
6:52 PMmax ebb SW (235°)1.1 kt
11:02 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.