RaceAtlas

Alcatraz Island Tides: Tuesday, February 17, 2026

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

4.9 ft12:08 AM2.2 ft5:11 AM5.9 ft11:12 AM-0.5 ft5:44 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.9 ft at 11:12 AM, low -0.5 ft at 5:44 PM. Gate: flood 3.2 kt at 9:41 PM, ebb 1.8 kt at 3:17 PM.
Modelled current at the Golden Gate on a 3.2 kt floodThe Gate at max flood, 3.2 kt
Tide height
TimeHeight
12:08 AMHigh4.9 ft
5:11 AMLow2.2 ft
11:12 AMHigh5.9 ft
5:44 PMLow-0.5 ft
Current · Golden Gate
TimeStateSpeed
1:25 AMslack–
3:51 AMmax ebb SW (235°)1.1 kt
6:14 AMslack–
9:07 AMmax flood ENE (074°)2.6 kt
12:21 PMslack–
3:17 PMmax ebb SW (235°)1.8 kt
6:33 PMslack–
9:41 PMmax flood ENE (074°)3.2 kt

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.