RaceAtlas

Alcatraz Island Tides: Wednesday, June 18, 2025

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

4.3 ft5:11 AM0.4 ft11:33 AM5.4 ft6:44 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.4 ft at 6:44 PM, low 0.4 ft at 11:33 AM. Gate: flood 3.0 kt at 3:47 PM, ebb 1.2 kt at 9:35 AM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
5:11 AMHigh4.3 ft
11:33 AMLow0.4 ft
6:44 PMHigh5.4 ft
Current · Golden Gate
TimeStateSpeed
12:46 AMslack–
3:24 AMmax flood ENE (074°)1.9 kt
6:50 AMslack–
9:35 AMmax ebb SW (235°)1.2 kt
12:22 PMslack–
3:47 PMmax flood ENE (074°)3.0 kt
8:03 PMslack–
11:06 PMmax ebb SW (235°)1.2 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.