RaceAtlas

Alcatraz Island Tides: Wednesday, February 18, 2026

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

5.1 ft12:33 AM1.8 ft5:50 AM5.7 ft11:55 AM-0.2 ft6:15 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.7 ft at 11:55 AM, low -0.2 ft at 6:15 PM. Gate: flood 3.4 kt at 10:14 PM, ebb 1.8 kt at 4:00 PM.
Modelled current at the Golden Gate on a 3.4 kt floodThe Gate at max flood, 3.4 kt
Tide height
TimeHeight
12:33 AMHigh5.1 ft
5:50 AMLow1.8 ft
11:55 AMHigh5.7 ft
6:15 PMLow-0.2 ft
Current · Golden Gate
TimeStateSpeed
1:44 AMslack–
4:24 AMmax ebb SW (235°)1.3 kt
7:03 AMslack–
9:53 AMmax flood ENE (074°)2.7 kt
1:09 PMslack–
4:00 PMmax ebb SW (235°)1.8 kt
7:06 PMslack–
10:14 PMmax flood ENE (074°)3.4 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.