RaceAtlas

Alcatraz Island Tides: Wednesday, March 18, 2026

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

5.2 ft12:14 AM1.1 ft5:52 AM5.5 ft12:04 PM0.2 ft6:06 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.5 ft at 12:04 PM, low 0.2 ft at 6:06 PM. Gate: flood 3.4 kt at 10:02 PM, ebb 1.6 kt at 3:58 PM.
Modelled current at the Golden Gate on a 3.4 kt floodThe Gate at max flood, 3.4 kt
Tide height
TimeHeight
12:14 AMHigh5.2 ft
5:52 AMLow1.1 ft
12:04 PMHigh5.5 ft
6:06 PMLow0.2 ft
Current · Golden Gate
TimeStateSpeed
1:19 AMslack–
4:10 AMmax ebb SW (235°)1.5 kt
7:01 AMslack–
9:55 AMmax flood ENE (074°)2.7 kt
1:17 PMslack–
3:58 PMmax ebb SW (235°)1.6 kt
6:52 PMslack–
10:02 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.