RaceAtlas

Alcatraz Island Tides: Thursday, April 17, 2025

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

5.4 ft2:09 AM-0.2 ft9:14 AM3.9 ft4:51 PM3.3 ft8:41 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.4 ft at 2:09 AM, low -0.2 ft at 9:14 AM. Gate: flood 2.4 kt at 12:24 AM, ebb 1.4 kt at 6:10 AM.
Modelled current at the Golden Gate on a 2.4 kt floodThe Gate at max flood, 2.4 kt
Tide height
TimeHeight
2:09 AMHigh5.4 ft
9:14 AMLow-0.2 ft
4:51 PMHigh3.9 ft
8:41 PMLow3.3 ft
Current · Golden Gate
TimeStateSpeed
12:24 AMmax flood ENE (074°)2.4 kt
3:23 AMslack–
6:10 AMmax ebb SW (235°)1.4 kt
10:13 AMslack–
1:51 PMmax flood ENE (074°)2.0 kt
6:52 PMslack–
8:16 PMmax ebb SW (235°)0.4 kt
9:44 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.