RaceAtlas

Alcatraz Island Tides: Friday, March 21, 2025

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

5.1 ft4:16 AM0.6 ft11:48 AM3.7 ft8:14 PM3.5 ft11:09 PM2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 5.1 ft at 4:16 AM, low 0.6 ft at 11:48 AM. Gate: flood 2.0 kt at 2:21 AM, ebb 1.0 kt at 8:17 AM.
Modelled current at the Golden Gate on a 2.0 kt floodThe Gate at max flood, 2.0 kt
Tide height
TimeHeight
4:16 AMHigh5.1 ft
11:48 AMLow0.6 ft
8:14 PMHigh3.7 ft
11:09 PMLow3.5 ft
Current · Golden Gate
TimeStateSpeed
2:21 AMmax flood ENE (074°)2.0 kt
5:38 AMslack–
8:17 AMmax ebb SW (235°)1.0 kt
12:26 PMslack–
5:34 PMmax flood ENE (074°)1.5 kt
9:37 PMslack–
10:38 PMmax ebb SW (235°)0.2 kt
11:41 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.