RaceAtlas

Alcatraz Island Tides: Friday, April 18, 2025

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

5.2 ft2:48 AM-0.1 ft10:05 AM3.8 ft6:04 PM3.4 ft9:36 PM0 ft2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 5.2 ft at 2:48 AM, low -0.1 ft at 10:05 AM. Gate: flood 2.2 kt at 1:09 AM, ebb 1.3 kt at 7:00 AM.
Modelled current at the Golden Gate on a 2.2 kt floodThe Gate at max flood, 2.2 kt
Tide height
TimeHeight
2:48 AMHigh5.2 ft
10:05 AMLow-0.1 ft
6:04 PMHigh3.8 ft
9:36 PMLow3.4 ft
Current · Golden Gate
TimeStateSpeed
1:09 AMmax flood ENE (074°)2.2 kt
4:07 AMslack–
7:00 AMmax ebb SW (235°)1.3 kt
10:59 AMslack–
2:34 PMmax flood ENE (074°)1.8 kt
7:58 PMslack–
9:11 PMmax ebb SW (235°)0.3 kt
10:30 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.